Fix top-level inference errors for most of the newly failing tests.

tests/lib_strong/mirrors/invocation_fuzz_test.dart

 // Copyright (c) 2014, 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.
 
 // This test reflectively enumerates all the methods in the system and tries to
 // invoke them with various basic values (nulls, ints, etc). This may result in
 // Dart exceptions or hangs, but should never result in crashes or JavaScript
 // exceptions.
 
 library test.invoke_natives;
@@ skipping 50 matching lines @@
     }
   }
   return false;
 }
 
 class Task {
   var name;
   var action;
 }
 
-var queue = new List();
+var queue = new List<Task>();
 
 checkMethod(MethodMirror m, ObjectMirror target, [origin]) {
   if (isBlacklisted(m.qualifiedName)) return;
 
   var task = new Task();
   task.name = '${MirrorSystem.getName(m.qualifiedName)} from $origin';
 
   if (m.isRegularMethod) {
     task.action = () => target.invoke(
         m.simpleName, new List.filled(m.parameters.length, fuzzArgument));
@@ skipping 108 matching lines @@
   ];
   valueObjects.forEach((v) => checkInstance(reflect(v), 'value object'));
 
   uncaughtErrorHandler(self, parent, zone, error, stack) {}
   ;
   var zoneSpec =
       new ZoneSpecification(handleUncaughtError: uncaughtErrorHandler);
   testZone = Zone.current.fork(specification: zoneSpec);
   testZone.createTimer(Duration.ZERO, doOneTask);
 }