net: move cgo-using darwin test to separate package

It is a goal / requirement that nothing in the standard library
on darwin require cgo, and this test-only file makes net use
cgo on darwin. Move it elsewhere.

Change-Id: I6c11a8391d3913f73ce0098ba63b29adf5864f93
Reviewed-on: https://go-review.googlesource.com/c/go/+/549255
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Russ Cox <rsc@golang.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/net/internal/cgotest/empty_test.go b/src/net/internal/cgotest/empty_test.go
new file mode 100644
index 0000000000..c4f601d571
--- /dev/null
+++ b/src/net/internal/cgotest/empty_test.go
@@ -0,0 +1,13 @@
+// Copyright 2023 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 cgotest
+
+import "testing"
+
+// Nothing to test here.
+// The test is that the package compiles at all.
+// See resstate.go.
+func Test(t *testing.T) {
+}