LibJS: Convert to_temporal_overflow() to ThrowCompletionOr

Author: https://github.com/linusg
Commit: 9f03647f1f
Pull-request: https://github.com/SerenityOS/serenity/pull/10065
Reviewed-by: https://github.com/IdanHo ✅

Userland/Libraries/LibJS/Runtime/Temporal/PlainYearMonthConstructor.cpp

@@ -100,9 +100,7 @@ JS_DEFINE_NATIVE_FUNCTION(PlainYearMonthConstructor::from)
     // 2. If Type(item) is Object and item has an [[InitializedTemporalYearMonth]] internal slot, then
     if (item.is_object() && is<PlainYearMonth>(item.as_object())) {
         // a. Perform ? ToTemporalOverflow(options).
-        (void)to_temporal_overflow(global_object, *options);
-        if (vm.exception())
-            return {};
+        (void)TRY_OR_DISCARD(to_temporal_overflow(global_object, *options));
 
         auto& plain_year_month_object = static_cast<PlainYearMonth&>(item.as_object());