[Compiler CLI] Sort flags and features before appending them to string

JS IR BE incremental compilation infrastructure uses
 LanguageVersionSettings::toString method to detect if any
 compiler features or flags were enabled or disabled.
 It is important that the features and flags order are stable
 in the result string.

^KT-56580 Fixed

js/js.tests/tests-gen/org/jetbrains/kotlin/incremental/JsIrES6InvalidationTestGenerated.java

@@ -255,6 +255,11 @@ public class JsIrES6InvalidationTestGenerated extends AbstractJsIrES6Invalidatio
         runTest("js/js.translator/testData/incremental/invalidation/jsModuleAnnotation/");
     }
 
+    @TestMetadata("languageVersionSettings")
+    public void testLanguageVersionSettings() throws Exception {
+        runTest("js/js.translator/testData/incremental/invalidation/languageVersionSettings/");
+    }
+
     @TestMetadata("localInlineFunction")
     public void testLocalInlineFunction() throws Exception {
         runTest("js/js.translator/testData/incremental/invalidation/localInlineFunction/");

js/js.tests/tests-gen/org/jetbrains/kotlin/incremental/JsIrInvalidationTestGenerated.java

@@ -255,6 +255,11 @@ public class JsIrInvalidationTestGenerated extends AbstractJsIrInvalidationTest
         runTest("js/js.translator/testData/incremental/invalidation/jsModuleAnnotation/");
     }
 
+    @TestMetadata("languageVersionSettings")
+    public void testLanguageVersionSettings() throws Exception {
+        runTest("js/js.translator/testData/incremental/invalidation/languageVersionSettings/");
+    }
+
     @TestMetadata("localInlineFunction")
     public void testLocalInlineFunction() throws Exception {
         runTest("js/js.translator/testData/incremental/invalidation/localInlineFunction/");