[V8] Unify get function name for debugging purpose

src/heap/heap.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_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
@@ skipping 220 matching lines @@
   V(char_at_string, "CharAt")                                    \
   V(closure_string, "(closure)")                                 \
   V(compare_ic_string, "==")                                     \
   V(configurable_string, "configurable")                         \
   V(constructor_string, "constructor")                           \
   V(construct_string, "construct")                               \
   V(Date_string, "Date")                                         \
   V(default_string, "default")                                   \
   V(defineProperty_string, "defineProperty")                     \
   V(deleteProperty_string, "deleteProperty")                     \
+  V(display_name_string, "displayName")                          \
   V(done_string, "done")                                         \
   V(dot_result_string, ".result")                                \
   V(dot_string, ".")                                             \
   V(enumerable_string, "enumerable")                             \
   V(enumerate_string, "enumerate")                               \
   V(Error_string, "Error")                                       \
   V(eval_string, "eval")                                         \
   V(false_string, "false")                                       \
   V(float32x4_string, "float32x4")                               \
   V(Float32x4_string, "Float32x4")                               \
@@ skipping 2475 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_H_