commit 615f289209d08316da2c609f843bd20201ce2275
author Russ Cox <rsc@golang.org> Fri Mar 15 15:24:13 2013 -0400
committer Russ Cox <rsc@golang.org> Fri Mar 15 15:24:13 2013 -0400
tree b64e4225d55267a71e2cecc85743bc5fb9baec16
parent 09cd13c51dabd709e79329a9b8591fc4d15b6f3f

cmd/gc: ensure unique parameter and result names in function types

In addition to fixing the bug, the check is now linear instead of quadratic.

Fixes #4469.

R=ken2
CC=golang-dev
https://golang.org/cl/7773047

test/func1.go

diff --git a/test/func1.go b/test/func1.go
index c89f7ff..fb6f561 100644
--- a/test/func1.go
+++ b/test/func1.go
@@ -14,6 +14,6 @@
 }
 
 
-func f2(a int) (a int, b float32) { // ERROR "redeclared|definition"
+func f2(a int) (a int, b float32) { // ERROR "duplicate argument a|definition"
 	return 8, 8.0
 }