Make test-dictionary work for GC stress builder.

test/cctest/cctest.h

Index: test/cctest/cctest.h
diff --git a/test/cctest/cctest.h b/test/cctest/cctest.h
index f3961a4adc5a4752234b58891e2f25eaa15c89c6..88cb9b8c5d93a2726977445ce10ddf78df64ffad 100644
--- a/test/cctest/cctest.h
+++ b/test/cctest/cctest.h
@@ -233,4 +233,24 @@ static inline int FlagDependentPortOffset() {
 }
 
 
+// Helper function that simulates a fill new-space in the heap.
+static inline void SimulateFullSpace(v8::internal::NewSpace* space) {
+  int new_linear_size = static_cast<int>(
+      *space->allocation_limit_address() - *space->allocation_top_address());
+  v8::internal::MaybeObject* maybe = space->AllocateRaw(new_linear_size);
+  v8::internal::FreeListNode* node = v8::internal::FreeListNode::cast(maybe);
+  node->set_size(space->heap(), new_linear_size);
+}
+
+
+// Helper function that simulates a full old-space in the heap.
+static inline void SimulateFullSpace(v8::internal::PagedSpace* space) {
+  int old_linear_size = static_cast<int>(space->limit() - space->top());
+  space->Free(space->top(), old_linear_size);
+  space->SetTop(space->limit(), space->limit());
+  space->ResetFreeList();
+  space->ClearStats();
+}
+
+
 #endif  // ifndef CCTEST_H_