gc: clean up if grammar

Fixes #2248.

R=ken2
CC=golang-dev
https://golang.org/cl/4978064

1 files changed, 12 insertions, 0 deletions

diff --git a/test/syntax/else.go b/test/syntax/else.go
new file mode 100644
index 0000000000..186d5959a8
--- /dev/null
+++ b/test/syntax/else.go
@@ -0,0 +1,12 @@
+// errchk $G $D/$F.go
+
+// Copyright 2011 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.
+
+package main
+
+func main() {
+	if true {
+	} else ;  // ERROR "else must be followed by if or statement block"
+}