`std.ascii`: make `toLower` `toUpper` branchless (#21369)

Co-authored-by: WX\shixi <shixi1@cnwxsoft.com>
8ddce90e62CrazyboyQCD committed on 9/14/2024, 12:22:19 AM· committed by GitHubparentb56a667
1 file changedLine totals unavailable