Keep new arrays allocated with 'new Array(N)' in fast mode (revisited)

src/runtime.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_RUNTIME_H_
 #define V8_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/zone.h"
 
@@ skipping 220 matching lines @@
   F(DefineDataPropertyUnchecked, 4, 1)                 \
   F(DefineAccessorPropertyUnchecked, 5, 1)             \
   F(GetDataProperty, 2, 1)                             \
   F(SetHiddenProperty, 3, 1)                           \
                                                        \
   /* Arrays */                                         \
   F(RemoveArrayHoles, 2, 1)                            \
   F(GetArrayKeys, 2, 1)                                \
   F(MoveArrayContents, 2, 1)                           \
   F(EstimateNumberOfElements, 1, 1)                    \
+  F(NormalizeElements, 1, 1)                           \
                                                        \
   /* Getters and Setters */                            \
   F(LookupAccessor, 3, 1)                              \
                                                        \
   /* ES5 */                                            \
   F(ObjectFreeze, 1, 1)                                \
                                                        \
   /* Harmony modules */                                \
   F(IsJSModule, 1, 1)                                  \
                                                        \
@@ skipping 637 matching lines @@
 class AllocateDoubleAlignFlag:  public BitField<bool,            0, 1> {};
 class AllocateTargetSpace:      public BitField<AllocationSpace, 1, 3> {};
 
 class DeclareGlobalsEvalFlag:   public BitField<bool,       0, 1> {};
 class DeclareGlobalsNativeFlag: public BitField<bool,       1, 1> {};
 class DeclareGlobalsStrictMode: public BitField<StrictMode, 2, 1> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_