- Add AtomicOperations::CompareAndSwapWord

runtime/vm/snapshot.h

Index: runtime/vm/snapshot.h
===================================================================
--- runtime/vm/snapshot.h	(revision 39714)
+++ runtime/vm/snapshot.h	(working copy)
@@ -428,7 +428,7 @@
 };
 
 
-class BaseWriter {
+class BaseWriter : public StackResource {
  public:
   // Size of the snapshot.
   intptr_t BytesWritten() const { return stream_.bytes_written(); }
@@ -496,7 +496,9 @@
  protected:
   BaseWriter(uint8_t** buffer,
              ReAlloc alloc,
-             intptr_t initial_size) : stream_(buffer, alloc, initial_size) {
+             intptr_t initial_size)
+      : StackResource(Isolate::Current()),
+        stream_(buffer, alloc, initial_size) {
     ASSERT(buffer != NULL);
     ASSERT(alloc != NULL);
   }
@@ -522,10 +524,8 @@
 
 class ForwardList {
  public:
-  explicit ForwardList(intptr_t first_object_id)
-      : first_object_id_(first_object_id),
-        nodes_(),
-        first_unprocessed_object_id_(first_object_id) {}
+  explicit ForwardList(intptr_t first_object_id);
+  ~ForwardList();
 
   class Node : public ZoneAllocated {
    public:
@@ -631,10 +631,12 @@
                      intptr_t tags);
   void WriteInstanceRef(RawObject* raw, RawClass* cls);
 
+  Isolate* isolate() const { return isolate_; }
   ObjectStore* object_store() const { return object_store_; }
 
  private:
   Snapshot::Kind kind_;
+  Isolate* isolate_;
   ObjectStore* object_store_;  // Object store for common classes.
   ClassTable* class_table_;  // Class table for the class index to class lookup.
   ForwardList forward_list_;