40634 Benchmark for un-triaged image results on Flutter Gold (a: tests, cla: yes, framework, team, waiting for tree to go green)

40635 Return WidgetSpans from getSpanForPosition (cla: yes, framework)

40636 Dark mode for CupertinoSwitch and CupertinoScrollbar, Fidelity updates (a: tests, cla: yes, f: cupertino, framework, severe: API break, will affect goldens)

40638 Allow sending platform messages from plugins to the framework and implement EventChannel (cla: yes, framework, plugin)

40640 Exclude non Android plugins from Gradle build (cla: yes, team, tool)

40641 Add onLongPress to Buttons (cla: yes, f: material design, framework, waiting for tree to go green)