Add InlinedMarkingVisitor::shouldMarkObject() predicate.

Source/platform/heap/Heap.cpp

Index: Source/platform/heap/Heap.cpp
diff --git a/Source/platform/heap/Heap.cpp b/Source/platform/heap/Heap.cpp
index 0d332a9264998e5f3309e85e53b23a6b6478a6c7..779a9be65f7fce0658dea8eca219c35a76e7124f 100644
--- a/Source/platform/heap/Heap.cpp
+++ b/Source/platform/heap/Heap.cpp
@@ -2128,16 +2128,16 @@ protected:
         Impl::registerWeakCellWithCallback(cell, callback);
     }
 
-    inline bool checkSkipForObjectInTerminatingThreadHeap(const void* objectPointer)
+    inline bool shouldMarkObject(const void* objectPointer)
     {
         if (Mode != ThreadLocalMarking)
-            return false;
+            return true;
 
         BaseHeapPage* page = pageFromObject(objectPointer);
         ASSERT(!page->orphaned());
         // When doing a thread local GC, the marker checks if
-        // the object resides in another thread's heap. The
-        // object should not be traced, if it does.
+        // the object resides in another thread's heap. If it
+        // does, the object should not be marked & traced.
         return page->terminating();
     }
 };