From 5ab9d2befd7c37468121081a84188aa687678e13 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Mon, 5 Mar 2012 13:47:36 -0500
Subject: [PATCH] cmd/gc: show duplicate key in error

R=ken2
CC=golang-dev
https://golang.org/cl/5728064
---
 src/cmd/gc/typecheck.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cmd/gc/typecheck.c b/src/cmd/gc/typecheck.c
index 90bd24964e..8b5578d250 100644
--- a/src/cmd/gc/typecheck.c
+++ b/src/cmd/gc/typecheck.c
@@ -1964,7 +1964,7 @@ keydup(Node *n, Node *hash[], ulong nhash)
 		b = cmp.val.u.bval;
 		if(b) {
 			// too lazy to print the literal
-			yyerror("duplicate key in map literal");
+			yyerror("duplicate key %N in map literal", n);
 			return;
 		}
 	}