Function::GetScriptOrigin should supply sourceURL when script name is not available.

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index b077a70f6b90aa1ae679c9802f8ed8faeb343622..00979f76d263632b4e37bca542b4f452b4726e71 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -574,8 +574,6 @@ Handle<JSArray> Isolate::CaptureCurrentStackTrace(
   Handle<String> column_key = factory()->LookupAsciiSymbol("column");
   Handle<String> line_key = factory()->LookupAsciiSymbol("lineNumber");
   Handle<String> script_key = factory()->LookupAsciiSymbol("scriptName");
-  Handle<String> name_or_source_url_key =
-      factory()->LookupAsciiSymbol("nameOrSourceURL");
   Handle<String> script_name_or_source_url_key =
       factory()->LookupAsciiSymbol("scriptNameOrSourceURL");
   Handle<String> function_key = factory()->LookupAsciiSymbol("functionName");
@@ -635,18 +633,7 @@ Handle<JSArray> Isolate::CaptureCurrentStackTrace(
       }
 
       if (options & StackTrace::kScriptNameOrSourceURL) {
-        Handle<Object> script_name(script->name(), this);
-        Handle<JSValue> script_wrapper = GetScriptWrapper(script);
-        Handle<Object> property = GetProperty(script_wrapper,
-                                              name_or_source_url_key);
-        ASSERT(property->IsJSFunction());
-        Handle<JSFunction> method = Handle<JSFunction>::cast(property);
-        bool caught_exception;
-        Handle<Object> result = Execution::TryCall(method, script_wrapper, 0,
-                                                   NULL, &caught_exception);
-        if (caught_exception) {
-          result = factory()->undefined_value();
-        }
+        Handle<Object> result = GetScriptNameOrSourceURL(script);
         CHECK_NOT_EMPTY_HANDLE(this,
                                JSObject::SetLocalPropertyIgnoreAttributes(
                                    stack_frame, script_name_or_source_url_key,