Merge libv1.

runtime/vm/isolate.cc

 // Copyright (c) 2012, 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 "lib/mirrors.h"
 #include "vm/compiler_stats.h"
@@ skipping 147 matching lines @@
       stub_code_(NULL),
       debugger_(NULL),
       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_(NULL),
+      spawn_data_(0),
       gc_prologue_callbacks_(),
       gc_epilogue_callbacks_(),
       deopt_cpu_registers_copy_(NULL),
       deopt_xmm_registers_copy_(NULL),
       deopt_frame_copy_(NULL),
       deopt_frame_copy_size_(0),
       deferred_doubles_(NULL),
       deferred_mints_(NULL) {
 }
 
@@ skipping 314 matching lines @@
 
 
 void Isolate::VisitWeakPersistentHandles(HandleVisitor* visitor,
                                          bool visit_prologue_weak_handles) {
   if (api_state() != NULL) {
     api_state()->VisitWeakHandles(visitor, visit_prologue_weak_handles);
   }
 }
 
 }  // namespace dart