Roll IDL to multivm@1350

core/dom/ErrorEvent.idl

Index: core/dom/ErrorEvent.idl
diff --git a/core/dom/ErrorEvent.idl b/core/dom/ErrorEvent.idl
index 21195e9a9c0f90402e907ac8df2dd1c55aa36149..33f02390d8d18a1a577c36fcf003abd81ef4e192 100644
--- a/core/dom/ErrorEvent.idl
+++ b/core/dom/ErrorEvent.idl
@@ -34,9 +34,7 @@
     [InitializedByEventConstructor] readonly attribute DOMString message;
     [InitializedByEventConstructor] readonly attribute DOMString filename;
     [InitializedByEventConstructor] readonly attribute unsigned long lineno;
-
-    // FIXME: Part of the specification but not exposed yet.
-    // No other browser seems to support it (except IE10 as 'colno').
-    // [InitializedByEventConstructor] readonly attribute unsigned long column;
+    [InitializedByEventConstructor] readonly attribute unsigned long colno;
+    [InitializedByEventConstructor, Custom, Unserializable] readonly attribute any error;
 };