diff --git a/src/internal/types/testdata/check/go1_xx_19.go b/src/internal/types/testdata/check/go1_xx_19.go
new file mode 100644
index 00000000000..01f6b7d2ebb
--- /dev/null
+++ b/src/internal/types/testdata/check/go1_xx_19.go
@@ -0,0 +1,15 @@
+// Copyright 2022 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.
+
+// Check Go language version-specific errors.
+
+//go:build go1.19
+
+package p
+
+type Slice []byte
+type Array [8]byte
+
+var s Slice
+var p = (Array)(s /* ok because Go 1.X prior to Go 1.21 ignored the //go:build go1.19 */)