Introduce flag --allocation-site-transitioning

src/runtime/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/objects.h"
 #include "src/zone.h"
@@ skipping 563 matching lines @@
   F(LiveEditFunctionSetScript, 2, 1)                \
   F(LiveEditReplaceRefToNestedFunction, 3, 1)       \
   F(LiveEditPatchFunctionPositions, 2, 1)           \
   F(LiveEditCheckAndDropActivations, 2, 1)          \
   F(LiveEditCompareStrings, 2, 1)                   \
   F(LiveEditRestartFrame, 2, 1)                     \
   F(GetFunctionCodePositionFromSource, 2, 1)        \
   F(ExecuteInDebugContext, 2, 1)                    \
                                                     \
   F(SetFlags, 1, 1)                                 \
+  F(HasAllocationSiteTransitioning, 0, 1)           \
   F(CollectGarbage, 1, 1)                           \
   F(GetHeapUsage, 0, 1)
 
 
 #ifdef V8_I18N_SUPPORT
 #define RUNTIME_FUNCTION_LIST_I18N_SUPPORT(F) \
   /* i18n support */                          \
   /* Standalone, helper methods. */           \
   F(CanonicalizeLanguageTag, 1, 1)            \
   F(AvailableLocalesOf, 1, 1)                 \
@@ skipping 307 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_