Move more parts of stack trace formatting to runtime.

src/messages.js

 // 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.
 
 // -------------------------------------------------------------------
 
 var $errorToString;
 var $formatMessage;
 var $getStackTraceLine;
 var $messageGetPositionInLine;
@@ skipping 753 matching lines @@
   var fun = GET_PRIVATE(this, CallSiteFunctionKey);
   var pos = GET_PRIVATE(this, CallSitePositionKey);
   return %CallSiteGetFunctionNameRT(receiver, fun, pos);
 }
 
 function CallSiteGetMethodName() {
   // See if we can find a unique property on the receiver that holds
   // this function.
   var receiver = GET_PRIVATE(this, CallSiteReceiverKey);
   var fun = GET_PRIVATE(this, CallSiteFunctionKey);
-  var ownName = fun.name;
-  if (ownName && receiver &&
-      (%_CallFunction(receiver, ownName, ObjectLookupGetter) === fun ||
-       %_CallFunction(receiver, ownName, ObjectLookupSetter) === fun ||
-       (IS_OBJECT(receiver) && %GetDataProperty(receiver, ownName) === fun))) {
-    // To handle DontEnum properties we guess that the method has
-    // the same name as the function.
-    return ownName;
-  }
-  var name = null;
-  for (var prop in receiver) {
-    if (%_CallFunction(receiver, prop, ObjectLookupGetter) === fun ||
-        %_CallFunction(receiver, prop, ObjectLookupSetter) === fun ||
-        (IS_OBJECT(receiver) && %GetDataProperty(receiver, prop) === fun)) {
-      // If we find more than one match bail out to avoid confusion.
-      if (name) {
-        return null;
-      }
-      name = prop;
-    }
-  }
-  if (name) {
-    return name;
-  }
-  return null;
+  var pos = GET_PRIVATE(this, CallSitePositionKey);
+  return %CallSiteGetMethodNameRT(receiver, fun, pos);
 }
 
 function CallSiteGetFileName() {
   var receiver = GET_PRIVATE(this, CallSiteReceiverKey);
   var fun = GET_PRIVATE(this, CallSiteFunctionKey);
   var pos = GET_PRIVATE(this, CallSitePositionKey);
   return %CallSiteGetFileNameRT(receiver, fun, pos);
 }
 
 function CallSiteGetLineNumber() {
@@ skipping 12 matching lines @@
 
 function CallSiteIsNative() {
   var receiver = GET_PRIVATE(this, CallSiteReceiverKey);
   var fun = GET_PRIVATE(this, CallSiteFunctionKey);
   var pos = GET_PRIVATE(this, CallSitePositionKey);
   return %CallSiteIsNativeRT(receiver, fun, pos);
 }
 
 function CallSiteIsConstructor() {
   var receiver = GET_PRIVATE(this, CallSiteReceiverKey);
-  var constructor = (receiver != null && IS_OBJECT(receiver))
-                        ? %GetDataProperty(receiver, "constructor") : null;
-  if (!constructor) return false;
-  return GET_PRIVATE(this, CallSiteFunctionKey) === constructor;
+  var fun = GET_PRIVATE(this, CallSiteFunctionKey);
+  var pos = GET_PRIVATE(this, CallSitePositionKey);
+  return %CallSiteIsConstructorRT(receiver, fun, pos);
 }
 
 function CallSiteToString() {
   var fileName;
   var fileLocation = "";
   if (this.isNative()) {
     fileLocation = "native";
   } else {
     fileName = this.getScriptNameOrSourceURL();
     if (!fileName && this.isEval()) {
@@ skipping 430 matching lines @@
   return MakeGenericError(GlobalTypeError, type, [arg]);
 }
 
 //Boilerplate for exceptions for stack overflows. Used from
 //Isolate::StackOverflow().
 $stackOverflowBoilerplate = MakeRangeError(kStackOverflow);
 %DefineAccessorPropertyUnchecked($stackOverflowBoilerplate, 'stack',
                                  StackTraceGetter, StackTraceSetter, DONT_ENUM);
 
 })();