39463 Update validation to support Xcode11 version (cla: yes, t: xcode, tool, waiting for tree to go green, ‎‍💻platform-catalina)

39503 Remove bitcode=NO from add-to-app flows (cla: yes, team, tool)

39504 Revert “Expose text metrics in TextPainter.” (cla: yes, framework)

39505 fix recursiveCopy to preserve executable bit (cla: yes, team)

39509 Skip failing add2app test to unblock roll (a: tests, cla: yes, team)

39514 kill leaked chrome processes (cla: yes, team)

39515 migrate from slow async io calls (a: tests, cla: yes, framework, team)