1. What is a short input program that triggers the error?

package main

func main() {
        type X struct { x   []X }
}


2. What is the full compiler output?

x.go:4: invalid recursive type X


3. What version of the compiler are you using?  (Run it with the -V flag.)

8g version 5802+
6g version 5802+


If you take X outside of main(), it compiles