type runtime._typePair

4 uses

	runtime (current package)
		type.go#L564: 					seen := map[_typePair]struct{}{}
		type.go#L578: type _typePair struct {
		type.go#L595: func typesEqual(t, v *_type, seen map[_typePair]struct{}) bool {
		type.go#L596: 	tp := _typePair{t, v}