Finish strong mode cleaning of dart2js.

pkg/compiler/lib/src/js_emitter/full_emitter/container_builder.dart

 // Copyright (c) 2013, 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.
 
 library dart2js.js_emitter.full_emitter.container_builder;
 
 import '../../constants/values.dart';
 import '../../elements/elements.dart'
     show Element, MetadataAnnotation, MethodElement;
 import '../../elements/entities.dart';
@@ skipping 101 matching lines @@
     }
 
     // On [requiredParameterCount], the lower bit is set if this method can be
     // called reflectively.
     int requiredParameterCount = parameters.requiredParameters << 1;
     if (member.isGetter || member.isSetter) requiredParameterCount++;
 
     int optionalParameterCount = parameters.optionalParameters << 1;
     if (parameters.namedParameters.isNotEmpty) optionalParameterCount++;
 
-    List tearOffInfo = [callSelectorString];
+    var tearOffInfo = <jsAst.Expression>[callSelectorString];
 
     for (ParameterStubMethod stub in method.parameterStubs) {
       jsAst.Name invocationName = stub.name;
       emitter.interceptorEmitter
           .recordMangledNameOfMemberMethod(member, invocationName);
 
       expressions.add(stub.code);
       if (member.isInstanceMember) {
         expressions.add(js.quoteName(invocationName));
       }
@@ skipping 52 matching lines @@
     jsAst.ArrayInitializer arrayInit =
         new jsAst.ArrayInitializer(expressions.toList());
     compiler.dumpInfoTask
         .registerElementAst(member, builder.addProperty(name, arrayInit));
   }
 
   void addMemberField(Field field, ClassBuilder builder) {
     // For now, do nothing.
   }
 }