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

src/api.cc

Index: src/api.cc
===================================================================
--- src/api.cc	(revision 9927)
+++ src/api.cc	(working copy)
@@ -3619,6 +3619,23 @@
 }
 
 
+int Function::GetScriptColumnNumber() const {
+  i::Handle<i::JSFunction> func = Utils::OpenHandle(this);
+  if (func->shared()->script()->IsScript()) {
+    i::Handle<i::Script> script(i::Script::cast(func->shared()->script()));
+    return i::GetScriptColumnNumber(script, func->shared()->start_position());
+  }
+  return kLineOffsetNotFound;
+}
+
+Handle<Value> Function::GetScriptId() const {
+  i::Handle<i::JSFunction> func = Utils::OpenHandle(this);
+  if (!func->shared()->script()->IsScript())
+    return v8::Undefined();
+  i::Handle<i::Script> script(i::Script::cast(func->shared()->script()));
+  return Utils::ToLocal(i::Handle<i::Object>(script->id()));
+}
+
 int String::Length() const {
   i::Handle<i::String> str = Utils::OpenHandle(this);
   if (IsDeadCheck(str->GetIsolate(), "v8::String::Length()")) return 0;