Add v8::Message::GetScriptOrigin() with tests

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 684b2c292ed9448a739e46b8358bb0339eb69d43..53389599bf8322f552ee108f3d2bfd90c1e69e83 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -1131,6 +1131,12 @@ class V8_EXPORT Message {
   Handle<Value> GetScriptResourceName() const;
 
   /**
+   * Returns the resource name or sourceURL for the script from where the
+   * function causing the error originates.
+   */
+  Handle<Value> GetScriptResourceNameOrSourceURL() const;

[yurys, 2014/05/05 07:30:40]

Would it make sense to expose GetUboundScript() method on Message object and
have script-specific methods right on UboundScript object instead of repeating
them in Message and other places in the API?

+
+  /**
    * Returns the resource data for the script from where the function causing
    * the error originates.
    */