[heap] Harden heap-related cctests

test/cctest/test-slots-buffer.cc

Index: test/cctest/test-slots-buffer.cc
diff --git a/test/cctest/test-slots-buffer.cc b/test/cctest/test-slots-buffer.cc
index 07b70f52177c3aace9c51559abd3baa58e909cc4..4b8aeb7931d8c174c8f1900c6e9415bcda01b616 100644
--- a/test/cctest/test-slots-buffer.cc
+++ b/test/cctest/test-slots-buffer.cc
@@ -4,7 +4,7 @@
 
 #include "src/heap/slots-buffer.h"
 #include "test/cctest/cctest.h"
-#include "test/cctest/heap/utils-inl.h"
+#include "test/cctest/heap/heap-utils.h"
 
 namespace v8 {
 namespace internal {
@@ -101,7 +101,7 @@ TEST(FilterInvalidSlotsBufferEntries) {
 
   // Write an old space reference into field 4 which points to an object on an
   // evacuation candidate.
-  SimulateFullSpace(heap->old_space());
+  heap::SimulateFullSpace(heap->old_space());
   Handle<FixedArray> valid_object =
       isolate->factory()->NewFixedArray(23, TENURED);
   Page* page = Page::FromAddress(valid_object->address());