the following code prints "%p(string=hello)".

this is a direct consequence of the recent changes to
fmt to switch on type first, but it's not helpful behaviour
and it's not easy to work around without importing
reflect and rewriting fmtUintptrGetter.

might i suggest that fmt.printField only check for Stringer/GoStringer
when the verb can actually process a string.

package main
import "fmt"
type T struct{}
func main() { fmt.Printf("%p\n", &T{}) }
func (x *T) String() string { return "hello" }