The DejaGNU testsuite harness used by the gccgo testsuite is

broken if you give it something which matches everything--the
.* swallows all the error messages.  Recognize some reasonable
error text directly.

R=rsc
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=20564
CL=20595

test/bugs/bug127.go

@@ -7,6 +7,6 @@
 package main
 func main() {
         var x int64 = 0;
-        println(x != nil);	// ERROR ".*"
-        println(0 != nil);	// ERROR ".*"
+        println(x != nil);	// ERROR "illegal|incompatible"
+        println(0 != nil);	// ERROR "illegal|incompatible"
 }