func strings.IndexRune

8 uses

	strings (current package)
		strings.go#L72: 	return IndexRune(s, r) >= 0
		strings.go#L126: func IndexRune(s string, r rune) int {
		strings.go#L157: 		return IndexRune(s, r)
		strings.go#L170: 		if IndexRune(chars, c) >= 0 {
		strings.go#L190: 		if IndexRune(chars, rc) >= 0 {
		strings.go#L222: 		if IndexRune(chars, r) >= 0 {

	regexp/syntax
		parse.go#L1169: 		end := strings.IndexRune(t, '>')
		parse.go#L1683: 		end := strings.IndexRune(s, '}')