Oilpan: rename GCState and GCReason values to reflect function only.

Source/bindings/core/v8/ScriptPromisePropertyTest.cpp

Index: Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
diff --git a/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp b/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
index 583c0a9b39b628ccb9518ff3d21fc920e1975789..63898ec529ac9d8cf5d4e4c39717f56fdcc0b09c 100644
--- a/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
+++ b/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
@@ -149,7 +149,7 @@ public:
         m_page.clear();
         m_otherScriptState.clear();
         gc();
-        Heap::collectGarbage(ThreadState::HeapPointersOnStack, ThreadState::GCWithSweep, Heap::ForcedGCForTesting);
+        Heap::collectGarbage(ThreadState::HeapPointersOnStack, ThreadState::GCWithSweep, Heap::ForcedGC);
     }
 
     void gc() { V8GCController::collectGarbage(v8::Isolate::GetCurrent()); }