Hide heap methods where possible.

test/cctest/cctest.h

Index: test/cctest/cctest.h
diff --git a/test/cctest/cctest.h b/test/cctest/cctest.h
index b4e31f26df5e3a1fe7976a49f7c654b34e5c084c..e0f359898ff58f4aa9d4c746325549a4a2c76604 100644
--- a/test/cctest/cctest.h
+++ b/test/cctest/cctest.h
@@ -80,6 +80,19 @@ typedef v8::internal::EnumSet<CcTestExtensionIds> CcTestExtensionFlags;
 #undef DEFINE_EXTENSION_FLAG
 
 
+// Use this to expose protected methods in i::Heap.
+class TestHeap : public i::Heap {
+ public:
+  using i::Heap::AllocateHeapNumber;
+  using i::Heap::AllocateMap;
+  using i::Heap::AllocateJSObject;
+  using i::Heap::AllocateJSObjectFromMap;
+  using i::Heap::AllocateByteArray;
+  using i::Heap::AllocateArgumentsObject;
+  using i::Heap::CopyCode;
+};
+
+
 class CcTest {
  public:
   typedef void (TestFunction)();
@@ -107,6 +120,10 @@ class CcTest {
     return i_isolate()->heap();
   }
 
+  static TestHeap* test_heap() {
+    return reinterpret_cast<TestHeap*>(i_isolate()->heap());
+  }
+
   static v8::Local<v8::Object> global() {
     return isolate()->GetCurrentContext()->Global();
   }