[V8] Use Function.name in Error.stack

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 76be0a6495e39c0fb56fbef6180565220ec9e00b..8e093845e081f611c07597cfb9c1d174112c680f 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -10327,6 +10327,15 @@ bool JSFunction::PassesFilter(const char* raw_filter) {
 }
 
 
+Handle<String> JSFunction::GetDebugName(Handle<JSFunction> function) {
+  Isolate* isolate = function->GetIsolate();
+  Handle<Object> name =
+      JSObject::GetDataProperty(function, isolate->factory()->name_string());
+  if (name->IsString()) return Handle<String>::cast(name);
+  return handle(function->shared()->DebugName(), isolate);
+}
+
+
 void Oddball::Initialize(Isolate* isolate,
                          Handle<Oddball> oddball,
                          const char* to_string,