gc: diagnose (x) := 0
Fixes #1756.
R=ken2
CC=golang-dev
https://golang.org/cl/4810057
diff --git a/test/fixedbugs/bug351.go b/test/fixedbugs/bug351.go
new file mode 100644
index 0000000..c33e282
--- /dev/null
+++ b/test/fixedbugs/bug351.go
@@ -0,0 +1,11 @@
+// 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() {
+ (x) := 0 // ERROR "non-name [(]x[)]"
+}
