go source for verification 2026-05-22

test/fixedbugs/issue19880.go

@@ -0,0 +1,20 @@
+// errorcheck
+
+// Copyright 2017 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 p
+
+type T struct {
+	f [1]int
+}
+
+func a() {
+	_ = T // ERROR "type T is not an expression|invalid use of type|not an expression"
+}
+
+func b() {
+	var v [len(T{}.f)]int // ok
+	_ = v
+}