Use a stub in crankshaft for grow store arrays.

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 1888 matching lines @@
       EnsureElementsMode mode);
   static void EnsureCanContainElements(
       Handle<JSObject> object,
       Arguments* arguments,
       uint32_t first_arg,
       uint32_t arg_count,
       EnsureElementsMode mode);
 
   // Would we convert a fast elements array to dictionary mode given
   // an access at key?
-  bool WouldConvertToSlowElements(Handle<Object> key);
+  bool WouldConvertToSlowElements(uint32_t index);
+  inline bool WouldConvertToSlowElements(Handle<Object> key);
   // Do we want to keep the elements in fast case when increasing the
   // capacity?
   bool ShouldConvertToSlowElements(int new_capacity);
   // Returns true if the backing storage for the slow-case elements of
   // this object takes up nearly as much space as a fast-case backing
   // storage would.  In that case the JSObject should have fast
   // elements.
   bool ShouldConvertToFastElements();
   // Returns true if the elements of JSObject contains only values that can be
   // represented in a FixedDoubleArray and has at least one value that can only
@@ skipping 39 matching lines @@
       Handle<JSObject> object,
       Handle<Object> receiver,
       uint32_t index);
 
   enum SetFastElementsCapacitySmiMode {
     kAllowSmiElements,
     kForceSmiElements,
     kDontAllowSmiElements
   };
 
+  static Handle<FixedArray> SetFastElementsCapacity(
+      Handle<JSObject> object, int capacity,
+      SetFastElementsCapacitySmiMode smi_mode);
+  static Handle<FixedArrayBase> SetFastDoubleElementsCapacity(
+      Handle<JSObject> object, int capacity);
+
   // Replace the elements' backing store with fast elements of the given
   // capacity.  Update the length for JSArrays.  Returns the new backing
   // store.
   static Handle<FixedArray> SetFastElementsCapacityAndLength(
       Handle<JSObject> object,
       int capacity,
       int length,
       SetFastElementsCapacitySmiMode smi_mode);
-  static void SetFastDoubleElementsCapacityAndLength(
-      Handle<JSObject> object,
-      int capacity,
-      int length);
+  static Handle<FixedArrayBase> SetFastDoubleElementsCapacityAndLength(
+      Handle<JSObject> object, int capacity, int length);
 
   // Lookup interceptors are used for handling properties controlled by host
   // objects.
   inline bool HasNamedInterceptor();
   inline bool HasIndexedInterceptor();
 
   // Computes the enumerable keys from interceptors. Used for debug mirrors and
   // by JSReceiver::GetKeys.
   MUST_USE_RESULT static MaybeHandle<JSObject> GetKeysForNamedInterceptor(
       Handle<JSObject> object,
@@ skipping 8976 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_