cmd/compile: allow exporting `.rcvr` ident

Noder pass will build a closure to implement generic function
instantiation which may produce `.dict` and `.rcvr` ident.
Since we allow `.dict` during exporting, we should allow `.rcvr` too.

Fixes #52241.

Change-Id: Ifc3912ba5155b5ac1887f20830da64f4fb3fceb6
Reviewed-on: https://go-review.googlesource.com/c/go/+/404314
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/test/typeparam/issue52241.go b/test/typeparam/issue52241.go
new file mode 100644
index 0000000000..4feb97e013
--- /dev/null
+++ b/test/typeparam/issue52241.go
@@ -0,0 +1,22 @@
+// compile
+
+// 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.
+
+package main
+
+type Collector[T any] struct {
+}
+
+func (c *Collector[T]) Collect() {
+}
+
+func TestInOrderIntTree() {
+	collector := Collector[int]{}
+	_ = collector.Collect
+}
+
+func main() {
+	TestInOrderIntTree()
+}