14967はそうなってて、ただし、defaultに入ってから関数で退避しているんですが、直接lexTriviaのswitch-caseにcaseを並べるってことですか？ https://github.com/apple/swift/pull/14967/files#diff-bacd55a550c89a67b8a470ce30b46ddaR560

[Do not merge] [Syntax] support invalid characters as trivia by omochi · Pull Request #14967 · apple/swift

This PR follows my previous PR #14962. I will rebase this after previous PR is merged. This PR update Lexer to support invalid characters as trivia. Currently, libSyntax does not support them, so r...