Finish strong mode cleaning of dart2js.

pkg/compiler/lib/src/js_emitter/startup_emitter/fragment_emitter.dart

 // Copyright (c) 2015, 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.js_emitter.startup_emitter.model_emitter;
 
 /// The name of the property that stores the tear-off getter on a static
 /// function.
 ///
 /// This property is only used when isolates are used.
@@ skipping 1150 matching lines @@
         if (method is StaticDartMethod) {
           if (method.needsTearOff) {
             Holder holder = method.holder;
             inits.add(
                 emitInstallTearOff(new js.VariableUse(holder.name), method));
           }
         }
       }
       for (Class cls in library.classes) {
         if (cls.isSoftDeferred != softDeferred) continue;
-        var methods = cls.methods.where((m) => m.needsTearOff).toList();
+        var methods = cls.methods.where((dynamic m) => m.needsTearOff).toList();
         js.Expression container = js.js("#.prototype", classReference(cls));
         js.Expression reference = container;
         if (methods.length > 1) {
           if (temp == null) {
             inits.add(js.js.statement('var _;'));
             temp = js.js('_');
           }
           // First call uses assignment to temp to cache the container.
           reference = js.js('# = #', [temp, container]);
         }
@@ skipping 371 matching lines @@
     }
     statements.add(js.js.statement("setOrUpdateInterceptorsByTag(#);",
         js.objectLiteral(interceptorsByTag)));
     statements.add(
         js.js.statement("setOrUpdateLeafTags(#);", js.objectLiteral(leafTags)));
     statements.addAll(subclassAssignments);
 
     return wrapPhase('nativeSupport', statements);
   }
 }