Revert "Limit the number of transitions allowed per hidden class." Due to crashes in ClearMapTransi…

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 10aaabfeb6b1ad993217f4d80f1b8192cdb56ec4..33363238c4d28a056421c19d32e1e3935c13bb64 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -5203,8 +5203,9 @@ Map* Map::elements_transition_map() {
 
 bool Map::CanHaveMoreTransitions() {
   if (!HasTransitionArray()) return true;
-  return transitions()->number_of_transitions() <=
-         TransitionArray::kMaxNumberOfTransitions;
+  return FixedArray::SizeFor(transitions()->length() +
+                             TransitionArray::kTransitionSize)
+      <= Page::kMaxRegularHeapObjectSize;
 }
 
 
@@ -6994,14 +6995,6 @@ void Map::ClearCodeCache(Heap* heap) {
 }
 
 
-int Map::SlackForArraySize(int old_size, int size_limit) {
-  const int max_slack = size_limit - old_size;
-  DCHECK(max_slack >= 0);
-  if (old_size < 4) return Min(max_slack, 1);
-  return Min(max_slack, old_size / 2);
-}
-
-
 void JSArray::EnsureSize(Handle<JSArray> array, int required_size) {
   DCHECK(array->HasFastSmiOrObjectElements());
   Handle<FixedArray> elts = handle(FixedArray::cast(array->elements()));