Reland "[heap] Provide ObjectMarking with marking transitions"

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 7125feced2d2b192823b2c55c0d26d71378bedb7..d2aa046e1f7e4a270691327ab352134e8d16b281 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -2121,7 +2121,7 @@ void WeakCell::initialize(HeapObject* val) {
   // We just have to execute the generational barrier here because we never
   // mark through a weak cell and collect evacuation candidates when we process
   // all weak cells.
-  WriteBarrierMode mode = Marking::IsBlack(ObjectMarking::MarkBitFrom(this))
+  WriteBarrierMode mode = ObjectMarking::IsBlack(this)
                               ? UPDATE_WRITE_BARRIER
                               : UPDATE_WEAK_WRITE_BARRIER;
   CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kValueOffset, val, mode);