[Interpreter]: Basic support for iterating interpreter stack frames for GC.

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 4881 matching lines @@
   inline bool is_keyed_load_stub();
   inline bool is_store_stub();
   inline bool is_keyed_store_stub();
   inline bool is_call_stub();
   inline bool is_binary_op_stub();
   inline bool is_compare_ic_stub();
   inline bool is_compare_nil_ic_stub();
   inline bool is_to_boolean_ic_stub();
   inline bool is_keyed_stub();
   inline bool is_optimized_code();
+  inline bool is_interpreter_entry_trampoline();
   inline bool embeds_maps_weakly();
 
   inline bool IsCodeStubOrIC();
   inline bool IsJavaScriptCode();
 
   inline void set_raw_kind_specific_flags1(int value);
   inline void set_raw_kind_specific_flags2(int value);
 
   // [is_crankshafted]: For kind STUB or ICs, tells whether or not a code
   // object was generated by either the hydrogen or the TurboFan optimizing
@@ skipping 5813 matching lines @@
   Handle<FixedArray> keys_;
   Handle<OrderedHashSet> set_;
   int length_;
   DISALLOW_COPY_AND_ASSIGN(KeyAccumulator);
 };
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_