Add getters for column number and script id to v8::Function

include/v8.h

Index: include/v8.h
===================================================================
--- include/v8.h	(revision 9927)
+++ include/v8.h	(working copy)
@@ -1736,6 +1736,12 @@
    * kLineOffsetNotFound if no information available.
    */
   V8EXPORT int GetScriptLineNumber() const;
+  /**
+   * Returns zero based column number of function body and
+   * kLineOffsetNotFound if no information available.
+   */
+  V8EXPORT int GetScriptColumnNumber() const;
+  V8EXPORT Handle<Value> GetScriptId() const;
   V8EXPORT ScriptOrigin GetScriptOrigin() const;
   static inline Function* Cast(Value* obj);
   V8EXPORT static const int kLineOffsetNotFound;