36785 [flutter_tool] Clean up usage events and custom dimensions

36787 Check for directory instead of path separator

36832 Remove flaky check for analyzer message.

37036 Build number (part after +) is documented as optional, use entire app version if not present

37044 [flutter_tool] Make a couple file operations synchronous

37186 [flutter_tool] Usage refactor cleanup

37196 [flutter_tool] Catch ProcessException from ‘adb devices’

37198 [flutter_tool] Re-try sending the first crash report

37210 do not strip symbols when building profile

37217 hide symbols from spotlight for App.framework

37331 [flutter_tool] Add missing toString()