typ := (*rtype)(resolveTypeOff(rodata, off))
			r = append(r, typ.String())
		}
	}
	return r
}

var GCBits = gcbits

func gcbits(any) []byte // provided by runtime

func MapBucketOf(x, y Type) Type {
	return toType(bucketOf(x.common(), y.common()))
}

func CachedBucketOf(m Type) Type {
	t := m.(*rtype)
	if Kind(t.t.Kind_&abi.KindMask) != Map {
		panic("not map")
	}