36303 Add sync star benchmark cases

37158 Fix Textfields in Semantics Debugger

37828 have android_semantics_testing use adb from ENV provided android sdk

Web (tech preview)

Work continues on adding to the technical preview of web platform support to Flutter in this release, including a flag to tell if an app is running on the web. To see it in action, check out main.dart in the flutter_mazegen sample. To learn more, see Flutter for web.

36135 add a kIsWeb constant to foundation

34252 Integrate dwds into flutter tool for web support

34896 Allow multi-root web builds

35221 Twiggle bit to exclude dev and beta from desktop and web

36297 Add multi-line flag to semantics