[heap] Expand verification of layout changes to non-JSObject objects.

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 80dc5b5ff1ecc188c91344db131de2ca46695da5..075664d6b211988c9bae96f6e2baaefaf9343b15 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -1258,11 +1258,9 @@ class Heap {
 
   // The runtime uses this function to notify potentially unsafe object layout
   // changes that require special synchronization with the concurrent marker.
-  // A layout change is unsafe if
-  // - it removes a tagged in-object field.
-  // - it replaces a tagged in-objects field with an untagged in-object field.
   void NotifyObjectLayoutChange(HeapObject* object,
                                 const DisallowHeapAllocation&);
+
 #ifdef VERIFY_HEAP
   // This function checks that either
   // - the map transition is safe,