Merge branch 'master' into releaseRC_20230707RB_20230711

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diff --git a/js/src/tests/non262/Intl/unicode-bcp47-locale-ids-variants-sorted.js b/js/src/tests/non262/Intl/unicode-bcp47-locale-ids-variants-sorted.js
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+++ b/js/src/tests/non262/Intl/unicode-bcp47-locale-ids-variants-sorted.js
@@ -0,0 +1,31 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+
+// UTS 35, 3.2.1 Canonical Unicode Locale Identifiers:
+// - Any variants are in alphabetical order.
+
+assertEq(Intl.getCanonicalLocales("en-scouse-fonipa")[0], "en-fonipa-scouse");
+
+// Sorting in alphabetical order may turn a valid BCP 47 language tag into a
+// BCP 47 language tag which is only well-formed, but no longer valid. This
+// means there are potential compatibility issues when converting between
+// Unicode BCP 47 locale identifiers and BCP 47 language tags.
+//
+// Spec: https://tools.ietf.org/html/rfc5646#section-2.2.9
+
+// <https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry>
+//
+// Type: variant
+// Subtag: 1994
+// Description: Standardized Resian orthography
+// Added: 2007-07-28
+// Prefix: sl-rozaj
+// Prefix: sl-rozaj-biske
+// Prefix: sl-rozaj-njiva
+// Prefix: sl-rozaj-osojs
+// Prefix: sl-rozaj-solba
+// Comments: For standardized Resian an orthography was published in 1994.
+
+assertEq(Intl.getCanonicalLocales("sl-rozaj-biske-1994")[0], "sl-1994-biske-rozaj");
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);