Support forEachClassMember on closure classes

pkg/compiler/lib/src/universe/codegen_world_builder.dart

 // Copyright (c) 2017, 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.
 
 part of world_builder;
 
 /// World builder specific to codegen.
 ///
 /// This adds additional access to liveness of selectors and elements.
 abstract class CodegenWorldBuilder implements WorldBuilder {
@@ skipping 331 matching lines @@
         staticFunctionsNeedingGetter.add(staticUse.element);
         break;
       case StaticUseKind.SUPER_TEAR_OFF:
         methodsNeedingSuperGetter.add(staticUse.element);
         break;
       case StaticUseKind.SUPER_FIELD_SET:
       case StaticUseKind.FIELD_SET:
       case StaticUseKind.GENERAL:
       case StaticUseKind.DIRECT_USE:
       case StaticUseKind.CLOSURE:
+      case StaticUseKind.CALL_METHOD:
       case StaticUseKind.FIELD_GET:
       case StaticUseKind.CONSTRUCTOR_INVOKE:
       case StaticUseKind.CONST_CONSTRUCTOR_INVOKE:
       case StaticUseKind.REDIRECTION:
       case StaticUseKind.DIRECT_INVOKE:
       case StaticUseKind.INLINING:
         break;
     }
   }
 
@@ skipping 10 matching lines @@
       }
     });
     EnumSet<MemberUse> useSet = new EnumSet<MemberUse>();
     switch (staticUse.kind) {
       case StaticUseKind.STATIC_TEAR_OFF:
         useSet.addAll(usage.tearOff());
         break;
       case StaticUseKind.FIELD_GET:
       case StaticUseKind.FIELD_SET:
       case StaticUseKind.CLOSURE:
+      case StaticUseKind.CALL_METHOD:
         // TODO(johnniwinther): Avoid this. Currently [FIELD_GET] and
         // [FIELD_SET] contains [BoxFieldElement]s which we cannot enqueue.
         // Also [CLOSURE] contains [LocalFunctionElement] which we cannot
         // enqueue.
         break;
       case StaticUseKind.SUPER_FIELD_SET:
       case StaticUseKind.SUPER_TEAR_OFF:
       case StaticUseKind.GENERAL:
       case StaticUseKind.DIRECT_USE:
         useSet.addAll(usage.normalUse());
@@ skipping 264 matching lines @@
 
   @override
   void forEachInstanceField(
       ClassEntity cls, void f(ClassEntity declarer, FieldEntity field)) {
     _elementEnvironment.forEachClassMember(cls,
         (ClassEntity declarer, MemberEntity member) {
       if (member.isField && member.isInstanceMember) f(declarer, member);
     });
   }
 }