Patch #2511: Give the "excepthandler" AST item proper attributes by making it a Sum.
diff --git a/Parser/Python.asdl b/Parser/Python.asdl
index 250e9ac..a4394c9 100644
--- a/Parser/Python.asdl
+++ b/Parser/Python.asdl
@@ -98,11 +98,8 @@
 	comprehension = (expr target, expr iter, expr* ifs)
 
 	-- not sure what to call the first argument for raise and except
-	-- TODO(jhylton): Figure out if there is a better way to handle
-	--                lineno and col_offset fields, particularly when
-        --                ast is exposed to Python.
-	excepthandler = (expr? type, expr? name, stmt* body, int lineno,
-	                 int col_offset)
+	excepthandler = ExceptHandler(expr? type, expr? name, stmt* body)
+	                attributes (int lineno, int col_offset)
 
 	arguments = (expr* args, identifier? vararg, 
 		     identifier? kwarg, expr* defaults)