<regex>: Properly parse and match collating symbols and equivalences - #5392

<regex>: Properly parse and match collating symbols and equivalences#5392

Stephan T. Lavavej (StephanTLavavej) merged 14 commits into

microsoft:mainmicrosoft/STL:mainfrom

muellerj2:regex-repair-collating-symbol-supportmuellerj2/STL:regex-repair-collating-symbol-supportCopy head branch name to clipboard