From eaca62f3310404e38fefc81ca6cae6466951cbff Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Tue, 2 Apr 2019 14:55:32 +0200
Subject: [PATCH] make tests green again

---
 compiler/sighashes.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/sighashes.nim b/compiler/sighashes.nim
index d7e80b3426..f88e45dbe4 100644
--- a/compiler/sighashes.nim
+++ b/compiler/sighashes.nim
@@ -152,7 +152,7 @@ proc hashType(c: var MD5Context, t: PType; flags: set[ConsiderFlag]) =
     for i in countup(0, sonsLen(t) - 1):
       c.hashType t.sons[i], flags
   of tyDistinct:
-    if {CoType, CoConsiderOwned} * flags == {CoType}:
+    if {CoType, CoConsiderOwned} * flags == {CoType} or t.sym == nil:
       c.hashType t.lastSon, flags
     else:
       c.hashSym(t.sym)