The compiler should reject comparisons between ints and nil.

R=gri
DELTA=8  (8 added, 0 deleted, 0 changed)
OCL=19434
CL=19436

test/bugs/bug124.go

+// Copyright 2009 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// ! errchk $G $D/$F.go
+package main
+func fn(i int) bool {
+  if i == nil {		// ERROR "type"
+    return true
+  }
+  return false 
+}