cmd/gc: fix 'internal error: typename ideal bool'
Fixes #6298.
R=ken2
CC=golang-dev
https://golang.org/cl/13624043
diff --git a/test/fixedbugs/issue6298.go b/test/fixedbugs/issue6298.go
new file mode 100644
index 0000000..6303dbe
--- /dev/null
+++ b/test/fixedbugs/issue6298.go
@@ -0,0 +1,15 @@
+// compile
+
+// golang.org/issue/6298.
+// Used to cause "internal error: typename ideal bool"
+
+// Copyright 2013 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 interface{} = "abc"[0] == 'a'
+ _ = x
+}
