to Upper Case
Returns a copy of this string converted to upper case using the rules of the specified locale.
@DeprecatedSinceKotlin(warningSince = "1.5" )
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Converts this character to upper case using Unicode mapping rules of the invariant locale.
@DeprecatedSinceKotlin(warningSince = "1.5" )
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Returns a copy of this string converted to upper case using the rules of the default locale.