Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibJS/Tests/object-expression-numeric-property.js

@@ -0,0 +1,53 @@
+test("numeric properties", () => {
+    const i32Max = 2 ** 31 - 1;
+    const u32Max = 2 ** 32 - 1;
+    const o = {
+        [-1]: "foo",
+        0: "foo",
+        1: "foo",
+        [i32Max - 1]: "foo",
+        [i32Max]: "foo",
+        [i32Max + 1]: "foo",
+        [u32Max - 1]: "foo",
+        [u32Max]: "foo",
+        [u32Max + 1]: "foo",
+    };
+    // Numeric properties come first in Object.getOwnPropertyNames()'s output,
+    // which means we can test what each is treated as internally.
+    expect(Object.getOwnPropertyNames(o)).toEqual([
+        // Numeric properties
+        "0",
+        "1",
+        "2147483646",
+        "2147483647",
+        "2147483648",
+        "4294967294",
+        // Non-numeric properties
+        "-1",
+        "4294967295", // >= 2^32 - 1
+        "4294967296", // >= 2^32 - 1
+    ]);
+});
+
+test("big int properties", () => {
+    const o = {
+        [-1n]: "foo",
+        0n: "foo",
+        1n: "foo",
+        [12345678901n]: "foo",
+        [4294967294n]: "foo",
+        [4294967295n]: "foo",
+    };
+    // Numeric properties come first in Object.getOwnPropertyNames()'s output,
+    // which means we can test what each is treated as internally.
+    expect(Object.getOwnPropertyNames(o)).toEqual([
+        // Numeric properties
+        "0",
+        "1",
+        "4294967294",
+        // Non-numeric properties
+        "-1",
+        "12345678901", // >= 2^32 - 1
+        "4294967295", // >= 2^32 - 1
+    ]);
+});