3 files changed, 45 insertions, 0 deletions
diff --git a/test/typeparam/issue49893.dir/a.go b/test/typeparam/issue49893.dir/a.go
new file mode 100644
index 0000000..bc810cd
--- /dev/null
+++ b/test/typeparam/issue49893.dir/a.go
@@ -0,0 +1,15 @@
+// Copyright 2021 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 a
+
+type Option[T any] interface {
+	ToSeq() Seq[T]
+}
+
+type Seq[T any] []T
+
+func (r Seq[T]) Find(p func(v T) bool) Option[T] {
+	panic("")
+}
diff --git a/test/typeparam/issue49893.dir/b.go b/test/typeparam/issue49893.dir/b.go
new file mode 100644
index 0000000..b86b536
--- /dev/null
+++ b/test/typeparam/issue49893.dir/b.go
@@ -0,0 +1,15 @@
+// Copyright 2021 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 b
+
+import "./a"
+
+type Ap1[A, B any] struct {
+	opt a.Option[A]
+}
+
+type Ap2[A, B any] struct {
+	opt a.Option[A]
+}
diff --git a/test/typeparam/issue49893.dir/main.go b/test/typeparam/issue49893.dir/main.go
new file mode 100644
index 0000000..447212d
--- /dev/null
+++ b/test/typeparam/issue49893.dir/main.go
@@ -0,0 +1,15 @@
+// Copyright 2021 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
+
+import (
+	"./b"
+	"fmt"
+)
+
+func main() {
+	opt := b.Ap1[string, string]{}
+	fmt.Println(opt)
+}