mv _testcgo => _testrt

cl/_testrt/any/in.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func incVal(a any) int {
+	return a.(int) + 1
+}
+
+func main() {
+	c.Printf(c.Str("Hello %d\n"), incVal(100))
+}