Do not run AddInstructionChangesNewSpacePromotion test in release mode.

BUG=
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/194663004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/test-heap.cc

@@ -3699,6 +3699,7 @@ TEST(ObjectsInOptimizedCodeAreWeak) {
 }
 
 
+#ifdef DEBUG
 TEST(AddInstructionChangesNewSpacePromotion) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_expose_gc = true;
@@ -3739,3 +3740,4 @@ TEST(AddInstructionChangesNewSpacePromotion) {
   g->Call(global, 1, args1);
   heap->CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
 }
+#endif