Canonicalize raw type

sdk/lib/_internal/compiler/implementation/enqueue.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.
 
 part of dart2js;
 
 class EnqueueTask extends CompilerTask {
   final Enqueuer codegen;
   final Enqueuer resolution;
 
@@ skipping 210 matching lines @@
       }
     }
   }
 
   void onRegisterInstantiatedClass(ClassElement cls) {
     task.measure(() {
       // The class must be resolved to compute the set of all
       // supertypes.
       cls.ensureResolved(compiler);
 
-      for (Link<DartType> supertypes = cls.allSupertypesAndSelf;
-           !supertypes.isEmpty; supertypes = supertypes.tail) {
-        cls = supertypes.head.element;
-        if (seenClasses.contains(cls)) continue;
+      void processClass(ClassElement cls) {
+        if (seenClasses.contains(cls)) return;
+
         seenClasses.add(cls);
         cls.ensureResolved(compiler);
         cls.implementation.forEachMember(processInstantiatedClassMember);
         if (isResolutionQueue) {
           compiler.resolver.checkMembers(cls);
         }
 
         if (compiler.enableTypeAssertions) {
           // We need to register is checks and helpers for checking
           // assignments to fields.
           // TODO(ngeoffray): This should really move to the backend.
           cls.localMembers.forEach((Element member) {
             if (!member.isInstanceMember() || !member.isField()) return;
             DartType type = member.computeType(compiler);
             registerIsCheck(type);
             SourceString helper = compiler.backend.getCheckedModeHelper(type);
             if (helper != null) {
               Element helperElement = compiler.findHelper(helper);
               registerStaticUse(helperElement);
             }
           });
         }
       }
+      processClass(cls);
+      for (Link<DartType> supertypes = cls.allSupertypes;
+           !supertypes.isEmpty; supertypes = supertypes.tail) {
+        processClass(supertypes.head.element);
+      }
     });
   }
 
   void registerNewSelector(SourceString name,
                            Selector selector,
                            Map<SourceString, Set<Selector>> selectorsMap) {
     if (name != selector.name) {
       String message = "$name != ${selector.name} (${selector.kind})";
       compiler.internalError("Wrong selector name: $message.");
     }
@@ skipping 130 matching lines @@
 
   String toString() => 'Enqueuer($name)';
 
   void logSummary(log(message)) {
     log(isResolutionQueue
         ? 'Resolved ${resolvedElements.length} elements.'
         : 'Compiled ${universe.generatedCode.length} methods.');
     nativeEnqueuer.logSummary(log);
   }
 }