Initial commit: Go 1.23 release state

test/fixedbugs/issue24470.go

@@ -0,0 +1,16 @@
+// errorcheck -d=panic
+
+// Copyright 2018 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.
+
+// Verify that we get "use of .(type) outside type switch"
+// before any other (misleading) errors. Test case from issue.
+
+package p
+
+func f(i interface{}) {
+	if x, ok := i.(type); ok { // ERROR "assignment mismatch|outside type switch"
+		_ = x
+	}
+}