[V8] Unify get function name for debugging purpose

src/objects.cc

 // Copyright 2013 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.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 11905 matching lines @@
     return true;
   }
   if (filter[filter.length() - 1] == '*' &&
       name->IsUtf8EqualTo(filter.SubVector(0, filter.length() - 1), true)) {
     return true;
   }
   return false;
 }
 
 
-Handle<String> JSFunction::GetDebugName(Handle<JSFunction> function) {
+Handle<String> JSFunction::GetName(Handle<JSFunction> function) {
   Isolate* isolate = function->GetIsolate();
   Handle<Object> name =
       JSReceiver::GetDataProperty(function, isolate->factory()->name_string());
   if (name->IsString()) return Handle<String>::cast(name);
   return handle(function->shared()->DebugName(), isolate);
 }
 
 
+Handle<String> JSFunction::GetDebugName(Handle<JSFunction> function) {
+  Isolate* isolate = function->GetIsolate();
+  Handle<Object> name = JSReceiver::GetDataProperty(
+      function, isolate->factory()->display_name_string());
+  if (name->IsString()) return Handle<String>::cast(name);
+  return JSFunction::GetName(function);
+}
+
+
 void Oddball::Initialize(Isolate* isolate, Handle<Oddball> oddball,
                          const char* to_string, Handle<Object> to_number,
                          const char* type_of, byte kind) {
   Handle<String> internalized_to_string =
       isolate->factory()->InternalizeUtf8String(to_string);
   Handle<String> internalized_type_of =
       isolate->factory()->InternalizeUtf8String(type_of);
   oddball->set_to_number(*to_number);
   oddball->set_to_string(*internalized_to_string);
   oddball->set_type_of(*internalized_type_of);
@@ skipping 6046 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8