// concatenation.
func funcNamePiecesForPrint(name string) (string, string, string) {
	// Replace the shape name in generic function with "...".
	i := bytealg.IndexByteString(name, '[')
	if i < 0 {
		return name, "", ""
	}
	j := len(name) - 1
	for name[j] != ']' {
		j--
	}
	if j <= i {
		return name, "", ""
	}
	return name[:i], "[...]", name[j+1:]
}