This test exercises a crash due to treatment of "comparable" in methodset
calculation (golang/go#60544).

-min_go is 1.19 as the error message changed at this Go version.
-- flags --
-min_go=go1.19

-- main.go --
package main

type X struct{}

func (X) test(x comparable) {} //@diag("comparable", re"outside a type constraint")