Hide ClosureMirror.findInContext behind a flag for 1.0.

tests/lib/mirrors/find_in_context_test.dart

Index: tests/lib/mirrors/find_in_context_test.dart
diff --git a/tests/lib/mirrors/closure_mirror_find_in_context_test.dart b/tests/lib/mirrors/find_in_context_test.dart
similarity index 94%
rename from tests/lib/mirrors/closure_mirror_find_in_context_test.dart
rename to tests/lib/mirrors/find_in_context_test.dart
index b26a1400dbec0d435268b2f42069689169bb0159..348cd3a5ed60436b2c8aae37e3806b1b9f92bc2c 100644
--- a/tests/lib/mirrors/closure_mirror_find_in_context_test.dart
+++ b/tests/lib/mirrors/find_in_context_test.dart
@@ -2,6 +2,8 @@
 // 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.
 
+// VMOptions=--support_find_in_context=true
+
 import "dart:mirrors";
 
 import "stringify.dart";
@@ -69,12 +71,16 @@ main() {
   Expect.equals(null, result);
 
   result = cm.findInContext(#staticFooInS);
+  Expect.isFalse(result is InstanceMirror);
+  Expect.equals(null, result);
+
+  result = cm.findInContext(#S.staticFooInS);
   Expect.isTrue(result is ClosureMirror);
   expect("Instance(value = staticFooInS)", result.apply(const []));
 
   result = cm.findInContext(#C.staticFooInS);
-  Expect.isTrue(result is ClosureMirror);
-  expect("Instance(value = staticFooInS)", result.apply(const []));
+  Expect.isFalse(result is InstanceMirror);
+  Expect.equals(null, result);
 
   result = cm.findInContext(#C.staticInC);
   expect("Instance(value = staticInC)", result);