Fix commentContinuationPatterns if they're a prefix of a later one.#14082

sean-mcmanus merged 3 commits intomainmicrosoft/vscode-cpptools:mainfrom

seanmcm/fixCommentContinuationPatternsPrefixmicrosoft/vscode-cpptools:seanmcm/fixCommentContinuationPatternsPrefixCopy head branch name to clipboard