Removed StackZone allocation from DARTSCOPE macros

runtime/vm/dart_api_impl_test.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 "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
 #include "platform/utils.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
@@ skipping 1224 matching lines @@
       handles[i] = Dart_NewPersistentHandle(ref2);
     }
     for (int i = 1000; i < 1500; i++) {
       handles[i] = Dart_NewPersistentHandle(ref1);
     }
     VERIFY_ON_TRANSITION;
     Dart_ExitScope();
   }
   Dart_ExitScope();
   {
+    StackZone zone(isolate);
     DARTSCOPE_NOCHECKS(isolate);
     for (int i = 0; i < 500; i++) {
       String& str = String::Handle();
       str ^= Api::UnwrapHandle(handles[i]);
       EXPECT(str.Equals(kTestString1));
     }
     for (int i = 500; i < 1000; i++) {
       String& str = String::Handle();
       str ^= Api::UnwrapHandle(handles[i]);
       EXPECT(str.Equals(kTestString2));
@@ skipping 931 matching lines @@
 // scope.
 UNIT_TEST_CASE(LocalHandles) {
   TestCase::CreateTestIsolate();
   Isolate* isolate = Isolate::Current();
   EXPECT(isolate != NULL);
   ApiState* state = isolate->api_state();
   EXPECT(state != NULL);
   ApiLocalScope* scope = state->top_scope();
   Dart_Handle handles[300];
   {
+    StackZone zone(isolate);
     DARTSCOPE_NOCHECKS(isolate);
     Smi& val = Smi::Handle();
 
     // Start a new scope and allocate some local handles.
     Dart_EnterScope();
     for (int i = 0; i < 100; i++) {
       handles[i] = Api::NewHandle(isolate, Smi::New(i));
     }
     EXPECT_EQ(100, state->CountLocalHandles());
     for (int i = 0; i < 100; i++) {
@@ skipping 4938 matching lines @@
     EXPECT(o2 == reinterpret_cast<void*>(&p2));
   }
   Dart_ExitScope();
   isolate->heap()->CollectGarbage(Heap::kOld);
   EXPECT_EQ(0, isolate->heap()->PeerCount());
 }
 
 #endif  // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64).
 
 }  // namespace dart