[heap] Provide ObjectMarking with marking transitions

src/heap/objects-visiting-inl.h

Index: src/heap/objects-visiting-inl.h
diff --git a/src/heap/objects-visiting-inl.h b/src/heap/objects-visiting-inl.h
index d86406bf5f77c204957dce60d4125974eff17f0e..6ed9c2cdd5cf5579fbb6be2a4486336b83423ae8 100644
--- a/src/heap/objects-visiting-inl.h
+++ b/src/heap/objects-visiting-inl.h
@@ -526,8 +526,7 @@ bool StaticMarkingVisitor<StaticVisitor>::IsFlushable(Heap* heap,
 
   // Code is either on stack, in compilation cache or referenced
   // by optimized version of function.
-  MarkBit code_mark = ObjectMarking::MarkBitFrom(function->code());
-  if (Marking::IsBlackOrGrey(code_mark)) {
+  if (ObjectMarking::IsBlackOrGrey(function->code())) {
     return false;
   }
 
@@ -550,8 +549,7 @@ bool StaticMarkingVisitor<StaticVisitor>::IsFlushable(
     Heap* heap, SharedFunctionInfo* shared_info) {
   // Code is either on stack, in compilation cache or referenced
   // by optimized version of function.
-  MarkBit code_mark = ObjectMarking::MarkBitFrom(shared_info->code());
-  if (Marking::IsBlackOrGrey(code_mark)) {
+  if (ObjectMarking::IsBlackOrGrey(shared_info->code())) {
     return false;
   }