move out c/cpp/py

cl/_testdata/foo/foo.go

@@ -0,0 +1,33 @@
+package foo
+
+func Bar() any {
+	return struct{ V int }{1}
+}
+
+func F() any {
+	return struct{ v int }{1}
+}
+
+type Foo struct {
+	pb *byte
+	F  float32
+}
+
+func (v Foo) Pb() *byte {
+	return v.pb
+}
+
+type Gamer interface {
+	initGame()
+	Load()
+}
+
+type Game struct {
+}
+
+func (g *Game) initGame() {
+}
+
+func (g *Game) Load() {
+	println("load")
+}