40291 range_slider_test.dart diagnostics property tests (cla: yes, f: material design, framework)

40294 fix copy command and remove resolve sync for macOS assemble (cla: yes, tool)

40301 Allow skipping webOnlyInitializePlatform in Flutter for Web (cla: yes, tool)

40302 Set DEFINES_MODULE for FlutterPluginRegistrant to generate modulemap (a: existing-apps, cla: yes, team, tool)

40304 Revert engine roll (cla: yes, engine)

40306 Restore offstage and ticker mode after hero pop and the from hero is null (cla: yes, framework)

40359 Revert engine roll (cla: yes, engine)

40366 Place existing dill into hot reload temp directory to boost initialization time (cla: yes, tool)