From 76589d67282f3baf5a79219ba45ba9696416e26e Mon Sep 17 00:00:00 2001
From: Timothy Flynn <trflynn89@pm.me>
Date: Sat, 11 Sep 2021 15:00:40 -0400
Subject: [PATCH] LibJS: Change wording of ErrorType::NotA to be independent of
 context

Currently, we have NotA and NotAn, to be used dependent on whether the
following word begins with a vowel or not. To avoid this, change the
wording on NotA to be independent of this context.
---
 Userland/Libraries/LibJS/Runtime/ErrorTypes.h                 | 2 +-
 .../Tests/builtins/BigInt/BigInt.prototype.toLocaleString.js  | 2 +-
 .../LibJS/Tests/builtins/BigInt/BigInt.prototype.toString.js  | 2 +-
 .../LibJS/Tests/builtins/BigInt/BigInt.prototype.valueOf.js   | 2 +-
 .../Tests/builtins/Boolean/Boolean.prototype.toString.js      | 2 +-
 .../LibJS/Tests/builtins/Boolean/Boolean.prototype.valueOf.js | 2 +-
 .../Tests/builtins/Date/Date.prototype.toTemporalInstant.js   | 2 +-
 .../LibJS/Tests/builtins/Function/Function.prototype.bind.js  | 2 +-
 .../builtins/Intl/ListFormat/ListFormat.prototype.format.js   | 2 +-
 .../Intl/ListFormat/ListFormat.prototype.formatToParts.js     | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.baseName.js   | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.calendar.js   | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.caseFirst.js  | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.collation.js  | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.hourCycle.js  | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.language.js   | 2 +-
 .../builtins/Intl/Locale/Locale.prototype.numberingSystem.js  | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.numeric.js    | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.region.js     | 2 +-
 .../Tests/builtins/Intl/Locale/Locale.prototype.script.js     | 2 +-
 .../LibJS/Tests/builtins/Number/Number.prototype.toFixed.js   | 2 +-
 .../LibJS/Tests/builtins/Number/Number.prototype.toString.js  | 2 +-
 .../LibJS/Tests/builtins/Number/Number.prototype.valueOf.js   | 2 +-
 .../LibJS/Tests/builtins/Promise/Promise.prototype.then.js    | 2 +-
 .../LibJS/Tests/builtins/Symbol/Symbol.prototype.valueOf.js   | 2 +-
 .../builtins/Temporal/Calendar/Calendar.prototype.era.js      | 2 +-
 .../builtins/Temporal/Calendar/Calendar.prototype.eraYear.js  | 2 +-
 .../builtins/Temporal/Calendar/Calendar.prototype.fields.js   | 2 +-
 .../Temporal/Calendar/Calendar.prototype.mergeFields.js       | 2 +-
 .../builtins/Temporal/Calendar/Calendar.prototype.toString.js | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.abs.js      | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.blank.js    | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.days.js     | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.hours.js    | 2 +-
 .../Temporal/Duration/Duration.prototype.microseconds.js      | 2 +-
 .../Temporal/Duration/Duration.prototype.milliseconds.js      | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.minutes.js  | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.months.js   | 2 +-
 .../Temporal/Duration/Duration.prototype.nanoseconds.js       | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.negated.js  | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.seconds.js  | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.sign.js     | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.weeks.js    | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.with.js     | 2 +-
 .../builtins/Temporal/Duration/Duration.prototype.years.js    | 2 +-
 .../Tests/builtins/Temporal/Instant/Instant.prototype.add.js  | 2 +-
 .../Temporal/Instant/Instant.prototype.epochMicroseconds.js   | 2 +-
 .../Temporal/Instant/Instant.prototype.epochMilliseconds.js   | 2 +-
 .../Temporal/Instant/Instant.prototype.epochNanoseconds.js    | 2 +-
 .../Temporal/Instant/Instant.prototype.epochSeconds.js        | 2 +-
 .../builtins/Temporal/Instant/Instant.prototype.equals.js     | 2 +-
 .../builtins/Temporal/Instant/Instant.prototype.round.js      | 2 +-
 .../builtins/Temporal/Instant/Instant.prototype.since.js      | 2 +-
 .../builtins/Temporal/Instant/Instant.prototype.subtract.js   | 2 +-
 .../builtins/Temporal/Instant/Instant.prototype.toJSON.js     | 2 +-
 .../Temporal/Instant/Instant.prototype.toLocaleString.js      | 2 +-
 .../builtins/Temporal/Instant/Instant.prototype.toString.js   | 2 +-
 .../Temporal/Instant/Instant.prototype.toZonedDateTime.js     | 2 +-
 .../Temporal/Instant/Instant.prototype.toZonedDateTimeISO.js  | 2 +-
 .../builtins/Temporal/Instant/Instant.prototype.until.js      | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.calendar.js        | 2 +-
 .../builtins/Temporal/PlainDate/PlainDate.prototype.day.js    | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.dayOfWeek.js       | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.dayOfYear.js       | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.daysInMonth.js     | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.daysInWeek.js      | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.daysInYear.js      | 2 +-
 .../builtins/Temporal/PlainDate/PlainDate.prototype.era.js    | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.eraYear.js         | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.inLeapYear.js      | 2 +-
 .../builtins/Temporal/PlainDate/PlainDate.prototype.month.js  | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.monthCode.js       | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.monthsInYear.js    | 2 +-
 .../builtins/Temporal/PlainDate/PlainDate.prototype.toJSON.js | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.toLocaleString.js  | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.toString.js        | 2 +-
 .../Temporal/PlainDate/PlainDate.prototype.weekOfYear.js      | 2 +-
 .../builtins/Temporal/PlainDate/PlainDate.prototype.year.js   | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.calendar.js         | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.day.js     | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.dayOfWeek.js        | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.dayOfYear.js        | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.daysInMonth.js      | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.daysInWeek.js       | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.daysInYear.js       | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.era.js     | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.eraYear.js | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.hour.js    | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.inLeapYear.js       | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.microsecond.js      | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.millisecond.js      | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.minute.js  | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.month.js   | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.monthCode.js        | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.monthsInYear.js     | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.nanosecond.js       | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.second.js  | 2 +-
 .../PlainDateTime/PlainDateTime.prototype.weekOfYear.js       | 2 +-
 .../Temporal/PlainDateTime/PlainDateTime.prototype.year.js    | 2 +-
 .../PlainMonthDay/PlainMonthDay.prototype.calendar.js         | 2 +-
 .../Temporal/PlainMonthDay/PlainMonthDay.prototype.day.js     | 2 +-
 .../PlainMonthDay/PlainMonthDay.prototype.getISOFields.js     | 2 +-
 .../PlainMonthDay/PlainMonthDay.prototype.monthCode.js        | 2 +-
 .../Temporal/PlainMonthDay/PlainMonthDay.prototype.toJSON.js  | 2 +-
 .../PlainMonthDay/PlainMonthDay.prototype.toLocaleString.js   | 2 +-
 .../PlainMonthDay/PlainMonthDay.prototype.toString.js         | 2 +-
 .../Temporal/PlainTime/PlainTime.prototype.calendar.js        | 2 +-
 .../builtins/Temporal/PlainTime/PlainTime.prototype.hour.js   | 2 +-
 .../Temporal/PlainTime/PlainTime.prototype.microsecond.js     | 2 +-
 .../Temporal/PlainTime/PlainTime.prototype.millisecond.js     | 2 +-
 .../builtins/Temporal/PlainTime/PlainTime.prototype.minute.js | 2 +-
 .../Temporal/PlainTime/PlainTime.prototype.nanosecond.js      | 2 +-
 .../builtins/Temporal/PlainTime/PlainTime.prototype.second.js | 2 +-
 .../builtins/Temporal/PlainTime/PlainTime.prototype.toJSON.js | 2 +-
 .../Temporal/PlainTime/PlainTime.prototype.toLocaleString.js  | 2 +-
 .../Temporal/PlainTime/PlainTime.prototype.toString.js        | 2 +-
 .../builtins/Temporal/PlainTime/PlainTime.prototype.with.js   | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.calendar.js       | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.daysInMonth.js    | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.daysInYear.js     | 2 +-
 .../Temporal/PlainYearMonth/PlainYearMonth.prototype.era.js   | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.eraYear.js        | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.getISOFields.js   | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.inLeapYear.js     | 2 +-
 .../Temporal/PlainYearMonth/PlainYearMonth.prototype.month.js | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.monthCode.js      | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.monthsInYear.js   | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.toJSON.js         | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.toLocaleString.js | 2 +-
 .../PlainYearMonth/PlainYearMonth.prototype.toString.js       | 2 +-
 .../Temporal/PlainYearMonth/PlainYearMonth.prototype.year.js  | 2 +-
 .../TimeZone/TimeZone.prototype.getOffsetNanosecondsFor.js    | 2 +-
 .../TimeZone/TimeZone.prototype.getOffsetStringFor.js         | 2 +-
 .../builtins/Temporal/TimeZone/TimeZone.prototype.toString.js | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.calendar.js         | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.day.js     | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.dayOfWeek.js        | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.dayOfYear.js        | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.daysInMonth.js      | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.daysInWeek.js       | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.daysInYear.js       | 2 +-
 .../ZonedDateTime.prototype.epochMicroseconds.js              | 2 +-
 .../ZonedDateTime.prototype.epochMilliseconds.js              | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.epochNanoseconds.js | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.epochSeconds.js     | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.era.js     | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.getISOFields.js     | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.hour.js    | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.inLeapYear.js       | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.microsecond.js      | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.millisecond.js      | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.minute.js  | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.month.js   | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.monthCode.js        | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.monthsInYear.js     | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.nanosecond.js       | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.offset.js  | 2 +-
 .../ZonedDateTime.prototype.offsetNanoseconds.js              | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.second.js  | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.timeZone.js         | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.toInstant.js        | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.toPlainDate.js      | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.toPlainDateTime.js  | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.toPlainTime.js      | 2 +-
 .../ZonedDateTime/ZonedDateTime.prototype.weekOfYear.js       | 2 +-
 .../Temporal/ZonedDateTime/ZonedDateTime.prototype.year.js    | 2 +-
 .../Tests/builtins/TypedArray/TypedArray.prototype.filter.js  | 4 ++--
 .../Tests/builtins/TypedArray/TypedArray.prototype.map.js     | 4 ++--
 169 files changed, 171 insertions(+), 171 deletions(-)

diff --git a/Userland/Libraries/LibJS/Runtime/ErrorTypes.h b/Userland/Libraries/LibJS/Runtime/ErrorTypes.h
index f583ef994de..a6bba61bb8b 100644
--- a/Userland/Libraries/LibJS/Runtime/ErrorTypes.h
+++ b/Userland/Libraries/LibJS/Runtime/ErrorTypes.h
@@ -57,7 +57,7 @@
     M(JsonMalformed, "Malformed JSON string")                                                                                           \
     M(NegativeExponent, "Exponent must be positive")                                                                                    \
     M(NonExtensibleDefine, "Cannot define property {} on non-extensible object")                                                        \
-    M(NotA, "Not a {} object")                                                                                                          \
+    M(NotA, "Not an object of type {}")                                                                                                 \
     M(NotAConstructor, "{} is not a constructor")                                                                                       \
     M(NotAFunction, "{} is not a function")                                                                                             \
     M(NotAFunctionNoParam, "Not a function")                                                                                            \
diff --git a/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toLocaleString.js b/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toLocaleString.js
index 1c111c516d5..d7b8b3484a2 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toLocaleString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toLocaleString.js
@@ -6,5 +6,5 @@ test("basic functionality", () => {
 test("calling with non-BigInt |this|", () => {
     expect(() => {
         BigInt.prototype.toLocaleString.call("foo");
-    }).toThrowWithMessage(TypeError, "Not a BigInt object");
+    }).toThrowWithMessage(TypeError, "Not an object of type BigInt");
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toString.js
index 040dec60d9b..b651bc7e491 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.toString.js
@@ -6,5 +6,5 @@ test("basic functionality", () => {
 test("calling with non-BigInt |this|", () => {
     expect(() => {
         BigInt.prototype.toString.call("foo");
-    }).toThrowWithMessage(TypeError, "Not a BigInt object");
+    }).toThrowWithMessage(TypeError, "Not an object of type BigInt");
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.valueOf.js b/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.valueOf.js
index f8404dcc074..40f7f74bdb3 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.valueOf.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/BigInt/BigInt.prototype.valueOf.js
@@ -7,5 +7,5 @@ test("basic functionality", () => {
 test("calling with non-BigInt |this|", () => {
     expect(() => {
         BigInt.prototype.valueOf.call("foo");
-    }).toThrowWithMessage(TypeError, "Not a BigInt object");
+    }).toThrowWithMessage(TypeError, "Not an object of type BigInt");
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.toString.js
index 506b23feac8..eb2847b06a5 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.toString.js
@@ -13,5 +13,5 @@ test("basic functionality", () => {
 test("errors on non-boolean |this|", () => {
     expect(() => {
         Boolean.prototype.toString.call("foo");
-    }).toThrowWithMessage(TypeError, "Not a Boolean object");
+    }).toThrowWithMessage(TypeError, "Not an object of type Boolean");
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.valueOf.js b/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.valueOf.js
index d510523c5b8..ce7bd371428 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.valueOf.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Boolean/Boolean.prototype.valueOf.js
@@ -12,5 +12,5 @@ test("basic functionality", () => {
 test("errors on non-boolean |this|", () => {
     expect(() => {
         Boolean.prototype.valueOf.call("foo");
-    }).toThrowWithMessage(TypeError, "Not a Boolean object");
+    }).toThrowWithMessage(TypeError, "Not an object of type Boolean");
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Date/Date.prototype.toTemporalInstant.js b/Userland/Libraries/LibJS/Tests/builtins/Date/Date.prototype.toTemporalInstant.js
index e5ca47bb895..e1dbf7d6839 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Date/Date.prototype.toTemporalInstant.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Date/Date.prototype.toTemporalInstant.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Date object", () => {
         expect(() => {
             Date.prototype.toTemporalInstant.call(123);
-        }).toThrowWithMessage(TypeError, "Not a Date object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Date");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Function/Function.prototype.bind.js b/Userland/Libraries/LibJS/Tests/builtins/Function/Function.prototype.bind.js
index 1bd5269f1d9..0ae42710f91 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Function/Function.prototype.bind.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Function/Function.prototype.bind.js
@@ -144,6 +144,6 @@ describe("errors", () => {
     test("does not accept non-function values", () => {
         expect(() => {
             Function.prototype.bind.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Function object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Function");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.format.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.format.js
index de5ad3563ef..91c695d257f 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.format.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.format.js
@@ -4,7 +4,7 @@ describe("errors", () => {
     test("called on non-ListFormat object", () => {
         expect(() => {
             Intl.ListFormat.prototype.format([]);
-        }).toThrowWithMessage(TypeError, "Not a Intl.ListFormat object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.ListFormat");
     });
 
     test("called with non-string iterable", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.formatToParts.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.formatToParts.js
index 42ab1f78c59..a2311ca63a6 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.formatToParts.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/ListFormat/ListFormat.prototype.formatToParts.js
@@ -4,7 +4,7 @@ describe("errors", () => {
     test("called on non-ListFormat object", () => {
         expect(() => {
             Intl.ListFormat.prototype.formatToParts([]);
-        }).toThrowWithMessage(TypeError, "Not a Intl.ListFormat object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.ListFormat");
     });
 
     test("called with non-string iterable", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.baseName.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.baseName.js
index e2654275173..dd2d4706527 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.baseName.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.baseName.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.baseName;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.calendar.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.calendar.js
index de372899ad0..6ece7cc45f2 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.calendar.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.calendar.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.calendar;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.caseFirst.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.caseFirst.js
index 852f4ea88c7..dfadf3ebbc4 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.caseFirst.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.caseFirst.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.caseFirst;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.collation.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.collation.js
index 363a679ae59..685a86b4064 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.collation.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.collation.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.collation;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.hourCycle.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.hourCycle.js
index 53c8e3c44f7..e756ebc5588 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.hourCycle.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.hourCycle.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.hourCycle;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.language.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.language.js
index 5b6820bb3a8..785f0d0a67b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.language.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.language.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.language;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numberingSystem.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numberingSystem.js
index ff1563cbbc7..897944b97bd 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numberingSystem.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numberingSystem.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.numberingSystem;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numeric.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numeric.js
index 3dcab9f41bc..1dc959eb6b6 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numeric.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.numeric.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.numeric;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.region.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.region.js
index f42fd53655d..0facce483a0 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.region.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.region.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.region;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.script.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.script.js
index 34338cb653b..133cea9eba8 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.script.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.script.js
@@ -2,7 +2,7 @@ describe("errors", () => {
     test("called on non-Locale object", () => {
         expect(() => {
             Intl.Locale.prototype.script;
-        }).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toFixed.js b/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toFixed.js
index 5d187823b6f..01d4c075d77 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toFixed.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toFixed.js
@@ -31,7 +31,7 @@ describe("errors", () => {
         [true, [], {}, Symbol("foo"), "bar", 1n].forEach(value => {
             expect(() => Number.prototype.toFixed.call(value)).toThrowWithMessage(
                 TypeError,
-                "Not a Number object"
+                "Not an object of type Number"
             );
         });
     });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toString.js
index 75d9f3a6d94..0623175fe52 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.toString.js
@@ -77,7 +77,7 @@ describe("errors", () => {
         [true, [], {}, Symbol("foo"), "bar", 1n].forEach(value => {
             expect(() => Number.prototype.toString.call(value)).toThrowWithMessage(
                 TypeError,
-                "Not a Number object"
+                "Not an object of type Number"
             );
         });
     });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.valueOf.js b/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.valueOf.js
index fca04122443..d71f26f44e0 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.valueOf.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Number/Number.prototype.valueOf.js
@@ -14,7 +14,7 @@ describe("errors", () => {
         [true, [], {}, Symbol("foo"), "bar", 1n].forEach(value => {
             expect(() => Number.prototype.valueOf.call(value)).toThrowWithMessage(
                 TypeError,
-                "Not a Number object"
+                "Not an object of type Number"
             );
         });
     });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Promise/Promise.prototype.then.js b/Userland/Libraries/LibJS/Tests/builtins/Promise/Promise.prototype.then.js
index 939981ece55..804d1338659 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Promise/Promise.prototype.then.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Promise/Promise.prototype.then.js
@@ -6,7 +6,7 @@ describe("errors", () => {
     test("this value must be a Promise", () => {
         expect(() => {
             Promise.prototype.then.call({});
-        }).toThrowWithMessage(TypeError, "Not a Promise");
+        }).toThrowWithMessage(TypeError, "Not an object of type Promise");
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Symbol/Symbol.prototype.valueOf.js b/Userland/Libraries/LibJS/Tests/builtins/Symbol/Symbol.prototype.valueOf.js
index 0bfbfef9122..b5043cd2b62 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Symbol/Symbol.prototype.valueOf.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Symbol/Symbol.prototype.valueOf.js
@@ -11,5 +11,5 @@ test("basic functionality", () => {
 test("|this| must be a symbol", () => {
     expect(() => {
         Symbol.prototype.valueOf.call("foo");
-    }).toThrowWithMessage(TypeError, "Not a Symbol object");
+    }).toThrowWithMessage(TypeError, "Not an object of type Symbol");
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.era.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.era.js
index a80ab602a27..8a03691c371 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.era.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.era.js
@@ -14,7 +14,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Calendar object", () => {
         expect(() => {
             Temporal.Calendar.prototype.era.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Calendar");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Calendar");
     });
 
     test("argument must be date-like", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.eraYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.eraYear.js
index 9ec905b5f45..791c03c239b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.eraYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.eraYear.js
@@ -14,7 +14,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Calendar object", () => {
         expect(() => {
             Temporal.Calendar.prototype.eraYear.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Calendar");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Calendar");
     });
 
     test("argument must be date-like", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.fields.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.fields.js
index 09214fc2be5..c9e4d704a61 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.fields.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.fields.js
@@ -27,7 +27,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Calendar object", () => {
         expect(() => {
             Temporal.Calendar.prototype.fields.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Calendar");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Calendar");
     });
 
     test("iterator values must be strings", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.mergeFields.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.mergeFields.js
index 1112c8871a8..596018b14c9 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.mergeFields.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.mergeFields.js
@@ -35,7 +35,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Calendar object", () => {
         expect(() => {
             Temporal.Calendar.prototype.mergeFields.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Calendar");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Calendar");
     });
 
     test("fields argument must be coercible to object", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.toString.js
index 6ce0f859459..49aad08e952 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.toString.js
@@ -13,6 +13,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Calendar object", () => {
         expect(() => {
             Temporal.Calendar.prototype.toString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Calendar");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Calendar");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.abs.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.abs.js
index 5d6c4bceb30..ba80ce52722 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.abs.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.abs.js
@@ -48,6 +48,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Temporal.Duration.prototype.abs.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.blank.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.blank.js
index 8e6d7e048bb..284d2837a34 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.blank.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.blank.js
@@ -12,6 +12,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "blank", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.days.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.days.js
index c224078eca0..6f41661e41f 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.days.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.days.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "days", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.hours.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.hours.js
index aa4b13e799f..e325bf7060d 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.hours.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.hours.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "hours", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.microseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.microseconds.js
index b12c4ff1106..5230e2b5591 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.microseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.microseconds.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "microseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.milliseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.milliseconds.js
index 1af482a1b57..31d90bfda67 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.milliseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.milliseconds.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "milliseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.minutes.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.minutes.js
index ff3e812aef3..d47b8296b9b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.minutes.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.minutes.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "minutes", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.months.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.months.js
index cf0aedc205e..01424ffe945 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.months.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.months.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "months", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.nanoseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.nanoseconds.js
index 340195b3a0f..d9b5117a8fa 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.nanoseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.nanoseconds.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "nanoseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.negated.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.negated.js
index 0b51f6789e1..d96f5a04d00 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.negated.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.negated.js
@@ -37,6 +37,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Temporal.Duration.prototype.negated.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.seconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.seconds.js
index 9ef68c17101..f15a023e960 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.seconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.seconds.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "seconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.sign.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.sign.js
index 62790c9b2de..aeabf47d8ef 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.sign.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.sign.js
@@ -12,6 +12,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "sign", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.weeks.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.weeks.js
index 0f7938840cb..b1c002cf3bd 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.weeks.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.weeks.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "weeks", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.with.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.with.js
index 20579d01015..dae778ad22d 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.with.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.with.js
@@ -42,7 +42,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Temporal.Duration.prototype.with.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 
     test("argument is not an object", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.years.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.years.js
index 153db4ef1fc..43175e6037d 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.years.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Duration/Duration.prototype.years.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Duration object", () => {
         expect(() => {
             Reflect.get(Temporal.Duration.prototype, "years", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Duration");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.add.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.add.js
index 015c94dc6b2..f5a6d9209d1 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.add.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.add.js
@@ -14,7 +14,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.add.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 
     test("invalid nanoseconds value, positive", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMicroseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMicroseconds.js
index f92e3733ffd..18bf350ef1c 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMicroseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMicroseconds.js
@@ -29,6 +29,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Reflect.get(Temporal.Instant.prototype, "epochMicroseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMilliseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMilliseconds.js
index 6eb25828f62..56546f4c738 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMilliseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochMilliseconds.js
@@ -28,6 +28,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Reflect.get(Temporal.Instant.prototype, "epochMilliseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochNanoseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochNanoseconds.js
index 039153a5e40..06f66dccb06 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochNanoseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochNanoseconds.js
@@ -20,6 +20,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Reflect.get(Temporal.Instant.prototype, "epochNanoseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochSeconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochSeconds.js
index 90b4ab30bfe..f01fc435624 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochSeconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.epochSeconds.js
@@ -28,6 +28,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Reflect.get(Temporal.Instant.prototype, "epochSeconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.equals.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.equals.js
index b02d0887453..a1bfc7f4ced 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.equals.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.equals.js
@@ -15,6 +15,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.equals.call("foo", 1, 2);
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js
index b6c74f20c49..e1c213cde98 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js
@@ -27,7 +27,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.round.call("foo", {});
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 
     test("missing options object", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js
index ff527fefff1..95d7ac04837 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js
@@ -15,6 +15,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.since.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.subtract.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.subtract.js
index 1f058ebc7f6..35ae00ce622 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.subtract.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.subtract.js
@@ -14,7 +14,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.subtract.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 
     test("invalid nanoseconds value, positive", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toJSON.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toJSON.js
index 63f965ac49c..074ae092566 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toJSON.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toJSON.js
@@ -13,6 +13,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.toJSON.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toLocaleString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toLocaleString.js
index 8877cac635a..2e3ecd1663b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toLocaleString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toLocaleString.js
@@ -13,6 +13,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.toLocaleString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toString.js
index f39db3c62c9..a9661c7c785 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toString.js
@@ -60,6 +60,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.toString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTime.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTime.js
index d01ec6841a5..07528143cd7 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTime.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTime.js
@@ -26,7 +26,7 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.toZonedDateTime.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 
     test("items argument must be an object", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTimeISO.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTimeISO.js
index 7f4ac620dab..0786e0c8a38 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTimeISO.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toZonedDateTimeISO.js
@@ -32,6 +32,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.toZonedDateTimeISO.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js
index 28a9ba7a5b0..2f009bfe5c1 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js
@@ -15,6 +15,6 @@ describe("errors", () => {
     test("this value must be a Temporal.Instant object", () => {
         expect(() => {
             Temporal.Instant.prototype.until.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.Instant");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.calendar.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.calendar.js
index d9e3bc47d39..cc8edd98f57 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.calendar.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.calendar.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "calendar", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.day.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.day.js
index e272dbf4dac..576e8275cc5 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.day.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.day.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "day", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfWeek.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfWeek.js
index a2e20cf33c6..436b8b6e850 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfWeek.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfWeek.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "dayOfWeek", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfYear.js
index 0a51493eeff..15d50c8e5c0 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.dayOfYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "dayOfYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInMonth.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInMonth.js
index 3c7d03da22c..9d02718ded0 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInMonth.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInMonth.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "daysInMonth", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInWeek.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInWeek.js
index ab6417a6c0b..1e9a8883493 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInWeek.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInWeek.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "daysInWeek", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInYear.js
index 44b92be90b8..90eb232fd04 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.daysInYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "daysInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.era.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.era.js
index f0f43dacc61..f6080cded15 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.era.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.era.js
@@ -19,6 +19,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "era", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.eraYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.eraYear.js
index d3d98f6b368..aa3452aa466 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.eraYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.eraYear.js
@@ -19,6 +19,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "eraYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.inLeapYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.inLeapYear.js
index 63fff82b318..94810afc29a 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.inLeapYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.inLeapYear.js
@@ -11,6 +11,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "inLeapYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.month.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.month.js
index c93461f27a5..4e771f92727 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.month.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.month.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "month", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthCode.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthCode.js
index 5e51240cabe..e5c6a293a82 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthCode.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthCode.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "monthCode", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthsInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthsInYear.js
index 7bf5c09f177..44b3e3566c1 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthsInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.monthsInYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "monthsInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toJSON.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toJSON.js
index 03e08c442ca..4ce606105ee 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toJSON.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toJSON.js
@@ -18,6 +18,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Temporal.PlainDate.prototype.toJSON.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toLocaleString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toLocaleString.js
index 527e711de20..bc465a1af20 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toLocaleString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toLocaleString.js
@@ -18,6 +18,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Temporal.PlainDate.prototype.toLocaleString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toString.js
index b34a91c7b23..0722a55340c 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.toString.js
@@ -39,7 +39,7 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Temporal.PlainDate.prototype.toString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 
     test("calendarName option must be one of 'auto', 'always', 'never'", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.weekOfYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.weekOfYear.js
index 8c3e2c6261c..ef9e8552ea9 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.weekOfYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.weekOfYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "weekOfYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.year.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.year.js
index fc69f49afc3..04ed036a3f5 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.year.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDate/PlainDate.prototype.year.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDate object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDate.prototype, "year", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDate");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.calendar.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.calendar.js
index b8a0bb89c1e..1da7740b42d 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.calendar.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.calendar.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "calendar", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.day.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.day.js
index d98d1f9f371..7431aa0a6ee 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.day.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.day.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "day", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfWeek.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfWeek.js
index efcc0c05d77..4b40325b01e 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfWeek.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfWeek.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "dayOfWeek", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfYear.js
index 40e667df125..500d2ab4188 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.dayOfYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "dayOfYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInMonth.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInMonth.js
index 890df23eb7f..174a423ced1 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInMonth.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInMonth.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "daysInMonth", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInWeek.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInWeek.js
index e83cfe15e63..0d83c77587a 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInWeek.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInWeek.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "daysInWeek", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInYear.js
index 22c1160ae55..27e76e8caaa 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.daysInYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "daysInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.era.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.era.js
index 382237413a4..61b3019720b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.era.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.era.js
@@ -19,6 +19,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "era", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.eraYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.eraYear.js
index cb107c88508..565bd365670 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.eraYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.eraYear.js
@@ -19,6 +19,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "eraYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.hour.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.hour.js
index a63260f8e1a..e9e6d52eb09 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.hour.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.hour.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "hour", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.inLeapYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.inLeapYear.js
index bfa5db84e9c..6e3a3d624f3 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.inLeapYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.inLeapYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "inLeapYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.microsecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.microsecond.js
index aa25b245d15..0c117acd7d9 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.microsecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.microsecond.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "microsecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.millisecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.millisecond.js
index 3a705303be4..66b11e49222 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.millisecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.millisecond.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "millisecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.minute.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.minute.js
index 1e9ba275ff8..47bd03f8a93 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.minute.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.minute.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "minute", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.month.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.month.js
index 82d8a473233..13043506128 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.month.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.month.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "month", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthCode.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthCode.js
index 000d075ef38..da755b413f7 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthCode.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthCode.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "monthCode", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthsInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthsInYear.js
index e7cda481eb2..4c7167ef584 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthsInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.monthsInYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "monthsInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.nanosecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.nanosecond.js
index 75e2d0259e3..ef4cced316b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.nanosecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.nanosecond.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "nanosecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.second.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.second.js
index 62182078d03..1becf5cfe59 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.second.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.second.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "second", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.weekOfYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.weekOfYear.js
index 8df9278ce71..0e801b423be 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.weekOfYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.weekOfYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "weekOfYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.year.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.year.js
index 4507df98bdc..ae1c2f16941 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.year.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.year.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainDateTime.prototype, "year", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.calendar.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.calendar.js
index e699dcf4e6f..9ab89accaf6 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.calendar.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.calendar.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainMonthDay object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainMonthDay.prototype, "calendar", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainMonthDay");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.day.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.day.js
index 4a0db67db19..e9807f1286f 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.day.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.day.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainMonthDay object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainMonthDay.prototype, "day", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainMonthDay");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.getISOFields.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.getISOFields.js
index 29feff968f3..11475b5a31b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.getISOFields.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.getISOFields.js
@@ -22,6 +22,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainMonthDay object", () => {
         expect(() => {
             Temporal.PlainMonthDay.prototype.getISOFields.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainMonthDay");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.monthCode.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.monthCode.js
index b662d26c90d..2943794e495 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.monthCode.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.monthCode.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainMonthDay object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainMonthDay.prototype, "monthCode", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainMonthDay");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toJSON.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toJSON.js
index ea568c8fff7..99cb9a93a2c 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toJSON.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toJSON.js
@@ -18,6 +18,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainMonthDay object", () => {
         expect(() => {
             Temporal.PlainMonthDay.prototype.toJSON.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainMonthDay");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toLocaleString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toLocaleString.js
index 388c4269f15..6d459cc7c12 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toLocaleString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toLocaleString.js
@@ -18,6 +18,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainMonthDay object", () => {
         expect(() => {
             Temporal.PlainMonthDay.prototype.toLocaleString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainMonthDay");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toString.js
index df09430402d..8a1c4b1da22 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainMonthDay/PlainMonthDay.prototype.toString.js
@@ -24,7 +24,7 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainMonthDay object", () => {
         expect(() => {
             Temporal.PlainMonthDay.prototype.toString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainMonthDay");
     });
 
     test("calendarName option must be one of 'auto', 'always', 'never'", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.calendar.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.calendar.js
index 9d85e7c4c7d..188ce77a666 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.calendar.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.calendar.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainTime.prototype, "calendar", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.hour.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.hour.js
index f735a3b8d78..8a8533ca042 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.hour.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.hour.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainTime.prototype, "hour", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.microsecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.microsecond.js
index cb019f9d5c2..ad550b82ccd 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.microsecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.microsecond.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainTime.prototype, "microsecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.millisecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.millisecond.js
index 656669afdba..dee6507992a 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.millisecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.millisecond.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainTime.prototype, "millisecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.minute.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.minute.js
index 62253ff1312..c3f39842d8b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.minute.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.minute.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainTime.prototype, "minute", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.nanosecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.nanosecond.js
index 62cfc7d0a72..ef7c9b9ed91 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.nanosecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.nanosecond.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainTime.prototype, "nanosecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.second.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.second.js
index db41d6fa515..b0687ee5719 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.second.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.second.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainTime.prototype, "second", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toJSON.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toJSON.js
index 5279be62225..2a94c3d2b3a 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toJSON.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toJSON.js
@@ -13,6 +13,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Temporal.PlainTime.prototype.toJSON.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toLocaleString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toLocaleString.js
index 05a5ce420e6..f0b2ab1a0b0 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toLocaleString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toLocaleString.js
@@ -13,6 +13,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Temporal.PlainTime.prototype.toLocaleString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toString.js
index cd82fae03fb..3f5ccd9fa8c 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toString.js
@@ -54,6 +54,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Temporal.PlainTime.prototype.toString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.with.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.with.js
index a0ffa7fb993..a0cb94ba1f8 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.with.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.with.js
@@ -62,7 +62,7 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainTime object", () => {
         expect(() => {
             Temporal.PlainTime.prototype.with.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime object");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
     });
 
     test("argument is not an object", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.calendar.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.calendar.js
index 9b80816de83..a5e31c04cf1 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.calendar.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.calendar.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "calendar", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInMonth.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInMonth.js
index cca56fbfdb8..59c07055d41 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInMonth.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInMonth.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "daysInMonth", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInYear.js
index d810a1da105..a0a114902f7 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.daysInYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "daysInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.era.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.era.js
index 5987e281c01..f3ccc9a5a82 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.era.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.era.js
@@ -19,6 +19,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "era", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.eraYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.eraYear.js
index 22bdd70799f..88effcb4ccf 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.eraYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.eraYear.js
@@ -19,6 +19,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "eraYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.getISOFields.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.getISOFields.js
index db8ac2b24bf..be42ba9c894 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.getISOFields.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.getISOFields.js
@@ -22,6 +22,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Temporal.PlainYearMonth.prototype.getISOFields.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.inLeapYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.inLeapYear.js
index 74e8d2b47e9..f79e77e7bda 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.inLeapYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.inLeapYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "inLeapYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.month.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.month.js
index 53bb0a515f9..8c09f11cbe8 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.month.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.month.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "month", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthCode.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthCode.js
index f2e5adb2f0a..8fdd1852dae 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthCode.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthCode.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "monthCode", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthsInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthsInYear.js
index 8e995808cf2..6ca5f84084a 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthsInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.monthsInYear.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "monthsInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toJSON.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toJSON.js
index dff2d5679d3..88251a82594 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toJSON.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toJSON.js
@@ -18,6 +18,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Temporal.PlainYearMonth.prototype.toJSON.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toLocaleString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toLocaleString.js
index ec4879c6e1a..d3832b2bda7 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toLocaleString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toLocaleString.js
@@ -18,6 +18,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Temporal.PlainYearMonth.prototype.toLocaleString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toString.js
index fbba95d9124..ef7b6433cb4 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.toString.js
@@ -39,7 +39,7 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Temporal.PlainYearMonth.prototype.toString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 
     test("calendarName option must be one of 'auto', 'always', 'never'", () => {
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.year.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.year.js
index bf7ab1228cd..13e0021ab34 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.year.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.year.js
@@ -9,6 +9,6 @@ describe("errors", () => {
     test("this value must be a Temporal.PlainYearMonth object", () => {
         expect(() => {
             Reflect.get(Temporal.PlainYearMonth.prototype, "year", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.PlainYearMonth");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetNanosecondsFor.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetNanosecondsFor.js
index fb190067eaf..3b9d3dd9554 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetNanosecondsFor.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetNanosecondsFor.js
@@ -20,6 +20,6 @@ describe("errors", () => {
     test("this value must be a Temporal.TimeZone object", () => {
         expect(() => {
             Temporal.TimeZone.prototype.getOffsetNanosecondsFor.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.TimeZone");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.TimeZone");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetStringFor.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetStringFor.js
index 27ad3ab11e6..b8a07573eab 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetStringFor.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getOffsetStringFor.js
@@ -20,6 +20,6 @@ describe("errors", () => {
     test("this value must be a Temporal.TimeZone object", () => {
         expect(() => {
             Temporal.TimeZone.prototype.getOffsetStringFor.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.TimeZone");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.TimeZone");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.toString.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.toString.js
index a82f0beb491..bfefb3ac931 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.toString.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.toString.js
@@ -13,6 +13,6 @@ describe("errors", () => {
     test("this value must be a Temporal.TimeZone object", () => {
         expect(() => {
             Temporal.TimeZone.prototype.toString.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.TimeZone");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.TimeZone");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.calendar.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.calendar.js
index 1b3dcf4eec7..53d9135c1b4 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.calendar.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.calendar.js
@@ -11,6 +11,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "calendar", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.day.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.day.js
index 4cb6fa0c0b6..a1a0766045b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.day.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.day.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "day", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfWeek.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfWeek.js
index 239e9ba1f56..e1fb8e41de0 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfWeek.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfWeek.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "dayOfWeek", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfYear.js
index d7ec8391eb5..b01db8a25c5 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.dayOfYear.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "dayOfYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInMonth.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInMonth.js
index 3f70013104d..741ae3e480c 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInMonth.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInMonth.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "daysInMonth", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInWeek.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInWeek.js
index 3e45acaf1f7..e0be6b61f96 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInWeek.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInWeek.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "daysInWeek", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInYear.js
index 3a1da70b059..3e724ecb519 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.daysInYear.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "daysInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMicroseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMicroseconds.js
index c64c994b48c..7cdbf3c3fec 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMicroseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMicroseconds.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "epochMicroseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMilliseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMilliseconds.js
index 5653638f803..381401e70f5 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMilliseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochMilliseconds.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "epochMilliseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochNanoseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochNanoseconds.js
index 185d07d6470..9c0e466e766 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochNanoseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochNanoseconds.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "epochNanoseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochSeconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochSeconds.js
index a5167b71de3..e764aaf91c0 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochSeconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.epochSeconds.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "epochSeconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.era.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.era.js
index 60beef255f5..dce541c0a80 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.era.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.era.js
@@ -21,6 +21,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "era", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js
index 304d9eea02c..4ec60dc4512 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js
@@ -21,6 +21,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "eraYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.getISOFields.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.getISOFields.js
index bce2593455d..89394f694e4 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.getISOFields.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.getISOFields.js
@@ -44,6 +44,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Temporal.ZonedDateTime.prototype.getISOFields.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.hour.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.hour.js
index 536f856669a..92a423922aa 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.hour.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.hour.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "hour", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.inLeapYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.inLeapYear.js
index a5dd6c2f691..88b546bcac5 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.inLeapYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.inLeapYear.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "inLeapYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.microsecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.microsecond.js
index 6f45616d4ce..2b49a6c6270 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.microsecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.microsecond.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "microsecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.millisecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.millisecond.js
index 03f9ddcd9f8..eb5aa72113a 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.millisecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.millisecond.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "millisecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.minute.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.minute.js
index 99360ce296a..f8977634734 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.minute.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.minute.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "minute", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.month.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.month.js
index 042493e29bb..08a57c85036 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.month.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.month.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "month", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthCode.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthCode.js
index e96e5189e27..5c41c42b9f1 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthCode.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthCode.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "monthCode", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthsInYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthsInYear.js
index 15a0980bebe..e0c3e0c6a1d 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthsInYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.monthsInYear.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "monthsInYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.nanosecond.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.nanosecond.js
index 1e6745cab2f..0caf652a858 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.nanosecond.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.nanosecond.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "nanosecond", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offset.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offset.js
index 2c2a826e301..bf3945bb792 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offset.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offset.js
@@ -16,6 +16,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "offset", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offsetNanoseconds.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offsetNanoseconds.js
index 6ac6db40f5f..1fe611c7299 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offsetNanoseconds.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.offsetNanoseconds.js
@@ -16,6 +16,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "offsetNanoseconds", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.second.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.second.js
index d0a13e8414f..c759b0d73b7 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.second.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.second.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "second", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.timeZone.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.timeZone.js
index 7de20724a30..21c97b56795 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.timeZone.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.timeZone.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "timeZone", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toInstant.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toInstant.js
index 98e62eba522..453779f603f 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toInstant.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toInstant.js
@@ -16,6 +16,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Temporal.ZonedDateTime.prototype.toInstant.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDate.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDate.js
index e5babceb470..9cd4ae467a5 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDate.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDate.js
@@ -18,6 +18,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Temporal.ZonedDateTime.prototype.toPlainDate.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDateTime.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDateTime.js
index 71407ef04fc..cc8013ecaec 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDateTime.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainDateTime.js
@@ -24,6 +24,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Temporal.ZonedDateTime.prototype.toPlainDateTime.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainTime.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainTime.js
index e6ba21a8156..6d2586e1d1b 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainTime.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.toPlainTime.js
@@ -21,6 +21,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Temporal.ZonedDateTime.prototype.toPlainTime.call("foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.weekOfYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.weekOfYear.js
index fc715ea7f5d..e6dfb9cb575 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.weekOfYear.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.weekOfYear.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "weekOfYear", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.year.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.year.js
index e97e210123d..e268f23ae7c 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.year.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.year.js
@@ -10,6 +10,6 @@ describe("errors", () => {
     test("this value must be a Temporal.ZonedDateTime object", () => {
         expect(() => {
             Reflect.get(Temporal.ZonedDateTime.prototype, "year", "foo");
-        }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
+        }).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
     });
 });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.filter.js b/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.filter.js
index a242efe3cfc..b33ace787b8 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.filter.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.filter.js
@@ -89,7 +89,7 @@ describe("errors", () => {
 
             expect(() => {
                 result = new TypedArray().filter(() => {});
-            }).toThrowWithMessage(TypeError, "Not a TypedArray object");
+            }).toThrowWithMessage(TypeError, "Not an object of type TypedArray");
 
             expect(result).toBeUndefined();
         });
@@ -105,7 +105,7 @@ describe("errors", () => {
 
             expect(() => {
                 result = new TypedArray().filter(() => {});
-            }).toThrowWithMessage(TypeError, "Not a TypedArray object");
+            }).toThrowWithMessage(TypeError, "Not an object of type TypedArray");
 
             expect(result).toBeUndefined();
         });
diff --git a/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.map.js b/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.map.js
index da25a55de48..622d3a3224f 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.map.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.map.js
@@ -121,7 +121,7 @@ describe("errors", () => {
 
             expect(() => {
                 result = new TypedArray().map(() => {});
-            }).toThrowWithMessage(TypeError, "Not a TypedArray object");
+            }).toThrowWithMessage(TypeError, "Not an object of type TypedArray");
 
             expect(result).toBeUndefined();
         });
@@ -137,7 +137,7 @@ describe("errors", () => {
 
             expect(() => {
                 result = new TypedArray().map(() => {});
-            }).toThrowWithMessage(TypeError, "Not a TypedArray object");
+            }).toThrowWithMessage(TypeError, "Not an object of type TypedArray");
 
             expect(result).toBeUndefined();
         });