Added a run state field to Isolate

runtime/vm/isolate.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/isolate.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
 #include "lib/mirrors.h"
@@ skipping 320 matching lines @@
       long_jump_base_(NULL),
       timer_list_(),
       deopt_id_(0),
       ic_data_array_(Array::null()),
       mutex_(new Mutex()),
       stack_limit_(0),
       saved_stack_limit_(0),
       message_handler_(NULL),
       spawn_data_(0),
       is_runnable_(false),
+      running_state_(kIsolateWaiting),
       gc_prologue_callbacks_(),
       gc_epilogue_callbacks_(),
       deopt_cpu_registers_copy_(NULL),
       deopt_fpu_registers_copy_(NULL),
       deopt_frame_copy_(NULL),
       deopt_frame_copy_size_(0),
       deferred_objects_(NULL),
       stacktrace_(NULL),
       stack_frame_index_(-1) {
 }
@@ skipping 715 matching lines @@
   return func.raw();
 }
 
 
 void IsolateSpawnState::Cleanup() {
   SwitchIsolateScope switch_scope(isolate());
   Dart::ShutdownIsolate();
 }
 
 }  // namespace dart