[V8] Use Function.name in Error.stack

src/messages.js

Index: src/messages.js
diff --git a/src/messages.js b/src/messages.js
index b4da5326d661379e389b12f13abc3b4337196642..7a067c07bb4512e69b6e3a4a6e8669ae48f92373 100644
--- a/src/messages.js
+++ b/src/messages.js
@@ -823,8 +823,13 @@ function CallSiteGetFunction() {
 }
 
 function CallSiteGetFunctionName() {
+  // See if the function has displayName
+  var name = GET_PRIVATE(this, CallSiteFunctionKey).displayName;

[aandrey, 2015/02/11 15:47:39]

unlike Function.name, this can throw.
you can use %GetDataProperty(..., "displayName")

[kozy, 2015/02/11 16:11:56]

Done.

+  if (name && IS_STRING(name)) {
+    return name;
+  }
   // See if the function knows its own name
-  var name = GET_PRIVATE(this, CallSiteFunctionKey).name;
+  name = GET_PRIVATE(this, CallSiteFunctionKey).name;
   if (name) {
     return name;
   }