Use displayName in Error.stack rendering if present.

src/runtime/runtime-internal.cc

 // Copyright 2014 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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/ast/prettyprinter.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 330 matching lines @@
 }
 
 
 static inline Object* ReturnBoolean(bool value, Isolate* isolate) {
   return isolate->heap()->ToBoolean(value);
 }
 
 
 CALLSITE_GET(GetFileName, ReturnDereferencedHandle)
 CALLSITE_GET(GetFunctionName, ReturnDereferencedHandle)
+CALLSITE_GET(GetDebugName, ReturnDereferencedHandle)
 CALLSITE_GET(GetScriptNameOrSourceUrl, ReturnDereferencedHandle)
 CALLSITE_GET(GetMethodName, ReturnDereferencedHandle)
 CALLSITE_GET(GetLineNumber, ReturnPositiveNumberOrNull)
 CALLSITE_GET(GetColumnNumber, ReturnPositiveNumberOrNull)
 CALLSITE_GET(IsNative, ReturnBoolean)
 CALLSITE_GET(IsToplevel, ReturnBoolean)
 CALLSITE_GET(IsEval, ReturnBoolean)
 CALLSITE_GET(IsConstructor, ReturnBoolean)
 
 #undef CALLSITE_GET
@@ skipping 123 matching lines @@
   std::stringstream stats_stream;
   isolate->counters()->runtime_call_stats()->Print(stats_stream);
   Handle<String> result =
       isolate->factory()->NewStringFromAsciiChecked(stats_stream.str().c_str());
   isolate->counters()->runtime_call_stats()->Reset();
   return *result;
 }
 
 }  // namespace internal
 }  // namespace v8