Add DartType.treatAsRaw to treat List<dynamic> as List in the backend.

sdk/lib/_internal/compiler/implementation/ssa/builder.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 ssa;
 
 /**
  * A special element for the extra parameter taken by intercepted
  * methods. We need to override [Element.computeType] because our
  * optimizers may look at its declared type.
@@ skipping 1789 matching lines @@
       // Otherwise it is a lazy initializer which does not have parameters.
       assert(element is VariableElement);
     }
   }
 
   HInstruction buildTypeConversion(HInstruction original,
                                    DartType type,
                                    int kind) {
     if (type == null) return original;
     type = type.unalias(compiler);
-    if (type.kind == TypeKind.INTERFACE && !type.isRaw) {
-     HType subtype = new HType.subtype(type, compiler);
-     HInstruction representations = buildTypeArgumentRepresentations(type);
-     add(representations);
-     return new HTypeConversion.withTypeRepresentation(type, kind, subtype,
+    if (type.kind == TypeKind.INTERFACE && !type.treatAsRaw) {
+      HType subtype = new HType.subtype(type, compiler);
+      HInstruction representations = buildTypeArgumentRepresentations(type);
+      add(representations);
+      return new HTypeConversion.withTypeRepresentation(type, kind, subtype,
           original, representations);
     } else if (type.kind == TypeKind.TYPE_VARIABLE) {
       HType subtype = original.instructionType;
       HInstruction typeVariable = addTypeVariableReference(type);
       return new HTypeConversion.withTypeRepresentation(type, kind, subtype,
           original, typeVariable);
     } else if (type.kind == TypeKind.FUNCTION) {
       if (backend.rti.isSimpleFunctionType(type)) {
         return original.convertType(compiler, type, kind);
       }
@@ skipping 1649 matching lines @@
     js.Expression code = js.js.parseForeignJS(template);
     HInstruction result = createForeign(code, backend.stringType, inputs);
     add(result);
     return result;
   }
 
   void handleListConstructor(InterfaceType type,
                              Node currentNode,
                              HInstruction newObject) {
     if (!backend.classNeedsRti(type.element)) return;
-    if (!type.isRaw) {
+    if (!type.treatAsRaw) {
       List<HInstruction> inputs = <HInstruction>[];
       type.typeArguments.forEach((DartType argument) {
         inputs.add(analyzeTypeArgument(argument));
       });
       callSetRuntimeTypeInfo(type.element, inputs, newObject);
     }
   }
 
   void callSetRuntimeTypeInfo(ClassElement element,
                               List<HInstruction> rtiInputs,
@@ skipping 2065 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }