Update mirror tests for removed API.

tests/lib/mirrors/fake_function_with_call_test.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.
 
 import "dart:mirrors";
 
 import "package:expect/expect.dart";
 
+membersOf(ClassMirror cm) {
+  var result = new Map();
+  cm.declarations.forEach((k,v) {
+    if(v is MethodMirror && !v.isConstructor) result[k] = v;
+    if(v is VariableMirror) result[k] = v;
+  });
+  return result;
+}
+
 class WannabeFunction {
   int call(int a, int b) => a + b;
   method(x) => x * x;
 }
 
 main() {
   Expect.isTrue(new WannabeFunction() is Function);
 
   ClosureMirror cm = reflect(new WannabeFunction());
   Expect.equals(7, cm.invoke(#call, [3,4]).reflectee);
@@ skipping 13 matching lines @@
   Expect.equals(#call, mm.simpleName);
   Expect.equals(reflectClass(WannabeFunction), mm.owner);
   Expect.isTrue(mm.isRegularMethod);
   Expect.equals(#int, mm.returnType.simpleName);
   Expect.equals(#int, mm.parameters[0].type.simpleName);
   Expect.equals(#int, mm.parameters[1].type.simpleName);
 
   ClassMirror km = cm.type;
   Expect.equals(reflectClass(WannabeFunction), km);
   Expect.equals(#WannabeFunction, km.simpleName);
-  Expect.equals(mm, km.members[#call]);
-  Expect.setEquals([#call, #method], km.members.keys);
+  Expect.equals(mm, km.declarations[#call]);
+  Expect.setEquals([#call, #method], membersOf(km).keys);
 }