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go/test/fixedbugs/bug121.go
Matthew Dempsky 398bf9d5a0 cmd/internal/gc, cmd/yacc: restore custom syntax error messages
This restores go.errors from before 3af0d79 along with a fixed up
version of the bisonerrors AWK script, translated to Go.

However, this means Yyerror needs access to the yacc parser's state,
which is currently private.  To workaround that, add a "state"
accessor method like the Lookahead method added in c7fa3c6.

Update issue #9968.

Change-Id: Ib868789e92fdb7d135442120a392457923e50121
Reviewed-on: https://go-review.googlesource.com/7270
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-04-02 21:56:24 +00:00

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Go

// errorcheck
// 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.
package main
type T func()
type I interface {
f, g (); // ERROR "name list not allowed"
}
type J interface {
h T; // ERROR "syntax|signature"
}