[dev.typeparams] cmd/compile/internal/types2: use correct type parameter list in missingMethod

For #46275

Change-Id: Iaed9d8ba034ad793e5c57f2be174f01a535fee95
Reviewed-on: https://go-review.googlesource.com/c/go/+/321232
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/cmd/compile/internal/types2/testdata/fixedbugs/issue46275.go2 b/src/cmd/compile/internal/types2/testdata/fixedbugs/issue46275.go2
new file mode 100644
index 0000000000..f41ae26e4b
--- /dev/null
+++ b/src/cmd/compile/internal/types2/testdata/fixedbugs/issue46275.go2
@@ -0,0 +1,26 @@
+// 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 issue46275
+
+type N[T any] struct {
+        *N[T]
+        t T
+}
+
+func (n *N[T]) Elem() T {
+        return n.t
+}
+
+type I interface {
+        Elem() string
+}
+
+func _() {
+        var n1 *N[string]
+        var _ I = n1
+        type NS N[string]
+        var n2 *NS
+        var _ I = n2
+}