Migrate stack resource unwinding to Thread.

runtime/vm/heap.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/heap.h"
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/flags.h"
 #include "vm/isolate.h"
@@ skipping 206 matching lines @@
 }
 
 
 void Heap::VisitObjects(ObjectVisitor* visitor) const {
   new_space_.VisitObjects(visitor);
   old_space_.VisitObjects(visitor);
 }
 
 
 HeapIterationScope::HeapIterationScope()
-    : StackResource(Thread::Current()->isolate()),
+    : StackResource(Thread::Current()),
       old_space_(isolate()->heap()->old_space()) {
   // It's not yet safe to iterate over a paged space while it's concurrently
   // sweeping, so wait for any such task to complete first.
   MonitorLocker ml(old_space_->tasks_lock());
 #if defined(DEBUG)
   // We currently don't support nesting of HeapIterationScopes.
   ASSERT(!old_space_->is_iterating_);
   old_space_->is_iterating_ = true;
 #endif
   while (old_space_->tasks() > 0) {
@@ skipping 547 matching lines @@
     heap->DisableGrowthControl();
 }
 
 
 NoHeapGrowthControlScope::~NoHeapGrowthControlScope() {
     Heap* heap = reinterpret_cast<Isolate*>(isolate())->heap();
     heap->SetGrowthControlState(current_growth_controller_state_);
 }
 
 }  // namespace dart