Fix --verify_handles mode by properly checking for the static API handles.

runtime/vm/dart.cc

 // 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.
 
 #include "vm/dart.h"
 
 #include "vm/code_observers.h"
 #include "vm/cpu.h"
 #include "vm/dart_api_state.h"
 #include "vm/dart_entry.h"
@@ skipping 354 matching lines @@
   ASSERT(predefined_handles_ != NULL);
   return predefined_handles_->api_handles_.AllocateHandle();
 }
 
 
 bool Dart::IsReadOnlyHandle(uword address) {
   ASSERT(predefined_handles_ != NULL);
   return predefined_handles_->handles_.IsValidScopedHandle(address);
 }
 
+
+bool Dart::IsReadOnlyApiHandle(Dart_Handle handle) {
+  ASSERT(predefined_handles_ != NULL);
+  return predefined_handles_->api_handles_.IsValidHandle(handle);
+}
+
 }  // namespace dart