cmd/gc: suppress array index error caused by a previously reported error
Fixes #7153
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/82180043
diff --git a/test/fixedbugs/issue7153.go b/test/fixedbugs/issue7153.go
new file mode 100644
index 0000000..d70d858
--- /dev/null
+++ b/test/fixedbugs/issue7153.go
@@ -0,0 +1,11 @@
+// errorcheck
+
+// Copyright 2014 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.
+
+// Issue 7153: array invalid index error duplicated on successive bad values
+
+package p
+
+var _ = []int{a: true, true} // ERROR "undefined: a" "cannot use true \(type bool\) as type int in array element"
