gc: more syntax errors

R=r
CC=golang-dev
https://golang.org/cl/731041

src/cmd/gc/go.errors

@@ -43,4 +43,10 @@ static struct {
 
 	% loadsys package imports LFUNC LNAME '(' ')' '{' LFOR LVAR LNAME '=' LNAME
 	"var declaration not allowed in for initializer",
+
+	% loadsys package imports LVAR LNAME '[' ']' LNAME '{'
+	"var declaration missing = before initial value",
+
+	% loadsys package imports LFUNC LNAME '(' ')' '{' LVAR LNAME '[' ']' LNAME '{'
+	"var declaration missing = before initial value",
 };

test/syntax/vareq.go

+// errchk $G -e $D/$F.go
+
+// Copyright 2010 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() {
+	var x map[string]string{"a":"b"}		// ERROR "var declaration missing ="

test/syntax/vareq1.go

+// errchk $G -e $D/$F.go
+
+// Copyright 2010 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
+
+var x map[string]string{"a":"b"}		// ERROR "var declaration missing ="
+