Fix it to emit a single diagnostic when both open and close quote are missing#1703

ahoppen merged 1 commit intoswiftlang:mainswiftlang/swift-syntax:mainfrom

TTOzzi:fix-emit-single-diag-when-both-open-close-quote-missingTTOzzi/swift-syntax:fix-emit-single-diag-when-both-open-close-quote-missingCopy head branch name to clipboard