libgo: update to Go1.18beta2

gotools/
	* Makefile.am (go_cmd_cgo_files): Add ast_go118.go
	(check-go-tool): Copy golang.org/x/tools directories.
	* Makefile.in: Regenerate.

Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/384695

1 files changed, 0 insertions, 27 deletions

diff --git a/libgo/go/net/parse_test.go b/libgo/go/net/parse_test.go
index c5f8bfd..97716d7 100644
--- a/libgo/go/net/parse_test.go
+++ b/libgo/go/net/parse_test.go
@@ -51,33 +51,6 @@ func TestReadLine(t *testing.T) {
 	}
 }
 
-func TestGoDebugString(t *testing.T) {
-	defer os.Setenv("GODEBUG", os.Getenv("GODEBUG"))
-	tests := []struct {
-		godebug string
-		key     string
-		want    string
-	}{
-		{"", "foo", ""},
-		{"foo=", "foo", ""},
-		{"foo=bar", "foo", "bar"},
-		{"foo=bar,", "foo", "bar"},
-		{"foo,foo=bar,", "foo", "bar"},
-		{"foo1=bar,foo=bar,", "foo", "bar"},
-		{"foo=bar,foo=bar,", "foo", "bar"},
-		{"foo=", "foo", ""},
-		{"foo", "foo", ""},
-		{",foo", "foo", ""},
-		{"foo=bar,baz", "loooooooong", ""},
-	}
-	for _, tt := range tests {
-		os.Setenv("GODEBUG", tt.godebug)
-		if got := goDebugString(tt.key); got != tt.want {
-			t.Errorf("for %q, goDebugString(%q) = %q; want %q", tt.godebug, tt.key, got, tt.want)
-		}
-	}
-}
-
 func TestDtoi(t *testing.T) {
 	for _, tt := range []struct {
 		in  string