Fix heap snapshot creation for Harmony collections.

R=yangguo@chromium.org
BUG=v8:2535
TEST=cctest/test-api/Regress2535

Review URL: https://codereview.chromium.org/12615005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13897 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/objects-inl.h

@@ -1563,6 +1563,10 @@ int JSObject::GetHeaderSize() {
       return JSDate::kSize;
     case JS_ARRAY_TYPE:
       return JSArray::kSize;
+    case JS_SET_TYPE:
+      return JSSet::kSize;
+    case JS_MAP_TYPE:
+      return JSMap::kSize;
     case JS_WEAK_MAP_TYPE:
       return JSWeakMap::kSize;
     case JS_REGEXP_TYPE:

test/cctest/test-api.cc

@@ -18257,6 +18257,19 @@ THREADED_TEST(Regress157124) {
 }
 
 
+THREADED_TEST(Regress2535) {
+  i::FLAG_harmony_collections = true;
+  v8::HandleScope scope;
+  LocalContext context;
+  Local<Value> set_value = CompileRun("new Set();");
+  Local<Object> set_object(Object::Cast(*set_value));
+  CHECK_EQ(0, set_object->InternalFieldCount());
+  Local<Value> map_value = CompileRun("new Map();");
+  Local<Object> map_object(Object::Cast(*map_value));
+  CHECK_EQ(0, map_object->InternalFieldCount());
+}
+
+
 #ifndef WIN32
 class ThreadInterruptTest {
  public: