Add more tested features to closure_test

pkg/compiler/lib/src/closure.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'common/names.dart' show Identifiers;
 import 'common/resolution.dart' show ParsingContext, Resolution;
 import 'common/tasks.dart' show CompilerTask, Measurer;
 import 'common.dart';
 import 'compiler.dart' show Compiler;
 import 'constants/expressions.dart';
@@ skipping 33 matching lines @@
   /// used inside the scope of [node].
   // TODO(johnniwinther): Split this up into two functions, one for members and
   // one for local functions.
   ScopeInfo getScopeInfo(covariant Entity member);
 
   /// This returns the same information as ScopeInfo, but can be called in
   /// situations when you are sure you are dealing with a closure specifically.
   ClosureRepresentationInfo getClosureRepresentationInfo(
       covariant Entity member);
 
+  ClosureRepresentationInfo getClosureRepresentationInfoForTesting(
+      covariant Entity member);
+
   /// Look up information about a loop, in case any variables it declares need
   /// to be boxed/snapshotted.
   CapturedLoopScope getCapturedLoopScope(T loopNode);
 
   /// Accessor to the information about scopes that closures capture. Used by
   /// the SSA builder.
   CapturedScope getCapturedScope(MemberEntity entity);
 }
 
 /// Class that represents one level of scoping information, whether this scope
@@ skipping 218 matching lines @@
   }
 
   ScopeInfo getScopeInfo(Element member) {
     return getClosureToClassMapping(member);
   }
 
   ClosureRepresentationInfo getClosureRepresentationInfo(Element member) {
     return getClosureToClassMapping(member);
   }
 
+  ClosureRepresentationInfo getClosureRepresentationInfoForTesting(
+      Element member) {
+    return getClosureRepresentationInfo(member);
+  }
+
   CapturedLoopScope getCapturedLoopScope(Node loopNode) {
     var value = _closureInfoMap[loopNode];
     return value == null ? const CapturedLoopScope() : value;
   }
 
   /// Returns the [ClosureClassMap] computed for [resolvedAst].
   ClosureClassMap getClosureToClassMapping(Element element) {
     return measure(() {
       if (element.isGenerativeConstructorBody) {
         ConstructorBodyElement constructorBody = element;
@@ skipping 1237 matching lines @@
 ///
 /// Move the below classes to a JS model eventually.
 ///
 abstract class JSEntity implements MemberEntity {
   Local get declaredEntity;
 }
 
 abstract class PrivatelyNamedJSEntity implements JSEntity {
   Entity get rootOfScope;
 }