Add LocalVariablesSorter to MethodRemaper in RemappingClassBuilder to keep old behavior

#KT-27774 In Progress

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/MethodInliner.kt

@@ -151,6 +151,7 @@ class MethodInliner(
 
         // MethodRemapper doesn't extends LocalVariablesSorter, but RemappingMethodAdapter does.
         // So wrapping with LocalVariablesSorter to keep old behavior
+        // TODO: investigate LocalVariablesSorter removing (see also same code in RemappingClassBuilder.java)
         val remappingMethodAdapter = MethodRemapper(
             LocalVariablesSorter(
                 resultNode.access,

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/RemappingClassBuilder.java

@@ -82,8 +82,15 @@ public class RemappingClassBuilder extends DelegatingClassBuilder {
             @Nullable String signature,
             @Nullable String[] exceptions
     ) {
+        String newDescriptor = remapper.mapMethodDesc(desc);
+        // MethodRemapper doesn't extends LocalVariablesSorter, but RemappingMethodAdapter does.
+        // So wrapping with LocalVariablesSorter to keep old behavior.
+        // TODO: investigate LocalVariablesSorter removing (see also same code in MethodInliner)
         return new MethodRemapper(
-                builder.newMethod(origin, access, name, remapper.mapMethodDesc(desc), remapper.mapSignature(signature, false), exceptions),
+                new LocalVariablesSorter(
+                        access, newDescriptor,
+                        builder.newMethod(origin, access, name, newDescriptor, remapper.mapSignature(signature, false),
+                                          exceptions)),
                 remapper
         );
     }