message, unicode/cldr: avoid string(int)

Updates golang/go#32479

Change-Id: Idd10c8208aaa006b3c80b90644e540a8af3572c0
Reviewed-on: https://go-review.googlesource.com/c/text/+/233899
Run-TryBot: Brad Fitzpatrick <[email protected]>
Reviewed-by: Ian Lance Taylor <[email protected]>
TryBot-Result: Gobot Gobot <[email protected]>

Author: bradfitz

message/fmt_test.go

@@ -257,10 +257,10 @@ var fmtTests = []struct {
 	{"%#q", "\U0010ffff", "`􏿿`"},
 	{"%#+q", "\U0010ffff", "`􏿿`"},
 	// Runes that are not valid.
-	{"%q", string(0x110000), `"�"`},
-	{"%+q", string(0x110000), `"\ufffd"`},
-	{"%#q", string(0x110000), "`�`"},
-	{"%#+q", string(0x110000), "`�`"},
+	{"%q", string(rune(0x110000)), `"�"`},
+	{"%+q", string(rune(0x110000)), `"\ufffd"`},
+	{"%#q", string(rune(0x110000)), "`�`"},
+	{"%#+q", string(rune(0x110000)), "`�`"},
 
 	// characters
 	{"%c", uint('x'), "x"},
@@ -1451,7 +1451,7 @@ func (flagPrinter) Format(f fmt.State, c rune) {
 	s := "%"
 	for i := 0; i < 128; i++ {
 		if f.Flag(i) {
-			s += string(i)
+			s += string(rune(i))
 		}
 	}
 	if w, ok := f.Width(); ok {

unicode/cldr/base.go

@@ -98,7 +98,7 @@ var charRe = regexp.MustCompile(`&#x[0-9a-fA-F]*;|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-
 func replaceUnicode(s string) string {
 	if s[1] == '#' {
 		r, _ := strconv.ParseInt(s[3:len(s)-1], 16, 32)
-		return string(r)
+		return string(rune(r))
 	}
 	r, _, _, _ := strconv.UnquoteChar(s, 0)
 	return string(r)