Handlify JSObject::MigrateInstance and friends.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index dcce931da943de6073052cc17fc9e60d3aefb09a..0a82ab73700be23b5257767a2c3eae6e4334c600 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -285,14 +285,13 @@ bool Object::HasValidElements() {
 
 
 MaybeObject* Object::AllocateNewStorageFor(Heap* heap,
-                                           Representation representation,
-                                           PretenureFlag tenure) {
+                                           Representation representation) {
   if (!FLAG_track_double_fields) return this;
   if (!representation.IsDouble()) return this;
   if (IsUninitialized()) {
-    return heap->AllocateHeapNumber(0, tenure);
+    return heap->AllocateHeapNumber(0);
   }
-  return heap->AllocateHeapNumber(Number(), tenure);
+  return heap->AllocateHeapNumber(Number());
 }
 
 
@@ -1542,19 +1541,6 @@ MaybeObject* JSObject::ResetElements() {
 }
 
 
-MaybeObject* JSObject::TryMigrateInstance() {
-  Map* new_map = map()->CurrentMapForDeprecated();
-  if (new_map == NULL) return Smi::FromInt(0);
-  Map* original_map = map();
-  MaybeObject* maybe_result = MigrateToMap(new_map);
-  JSObject* result;
-  if (FLAG_trace_migration && maybe_result->To(&result)) {
-    PrintInstanceMigration(stdout, original_map, result->map());
-  }
-  return maybe_result;
-}
-
-
 Handle<String> JSObject::ExpectedTransitionKey(Handle<Map> map) {
   DisallowHeapAllocation no_gc;
   if (!map->HasTransitionArray()) return Handle<String>::null();