From 5671021c5c2b13637abeb9de5de680d7b33d1499 Mon Sep 17 00:00:00 2001
From: Dmitry Jemerov <yole@jetbrains.com>
Date: Mon, 13 Aug 2012 12:47:11 +0200
Subject: [PATCH] don't lose valuable diagnostic message (EA-38136 - PIEAE:
 PyFunctionImpl.a)

---
 python/src/com/jetbrains/python/psi/types/PyUnionType.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/src/com/jetbrains/python/psi/types/PyUnionType.java b/python/src/com/jetbrains/python/psi/types/PyUnionType.java
index 85b373fbd563..80f39046bd39 100644
--- a/python/src/com/jetbrains/python/psi/types/PyUnionType.java
+++ b/python/src/com/jetbrains/python/psi/types/PyUnionType.java
@@ -75,7 +75,7 @@ public class PyUnionType implements PyType {
   public void assertValid(String message) {
     for (PyType member : myMembers) {
       if (member != null) {
-        member.assertValid(null);
+        member.assertValid(message);
       }
     }
   }