Add ability to disable inline bump-pointer allocation.

test/cctest/cctest.h

Index: test/cctest/cctest.h
diff --git a/test/cctest/cctest.h b/test/cctest/cctest.h
index 7f84c259f0c4cb1b135ae6a73d465d631d858e31..428245dcf47a7c861f2bf099eab95e0f5bc6c3cf 100644
--- a/test/cctest/cctest.h
+++ b/test/cctest/cctest.h
@@ -332,6 +332,7 @@ static inline int FlagDependentPortOffset() {
 static inline void SimulateFullSpace(v8::internal::NewSpace* space) {
   int new_linear_size = static_cast<int>(
       *space->allocation_limit_address() - *space->allocation_top_address());
+  if (new_linear_size == 0) return;
   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);
@@ -340,9 +341,7 @@ static inline void SimulateFullSpace(v8::internal::NewSpace* space) {
 
 // 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->EmptyAllocationInfo();
   space->ResetFreeList();
   space->ClearStats();
 }