37512 Enable track widget creation on debug builds (cla: yes, tool)

37514 [flutter_tool] Remove unintended analytics screen send (cla: yes, tool)

37515 Upstream web support for IterableProperty (cla: yes, framework, ☸ platform-web)

37516 Kill stale TODO (a: tests, cla: yes, framework, team)

37521 have xcodeSelectPath also catch ArgumentError (cla: yes, tool)

37524 Ensure that tests remove pointers by using addTearDown (a: tests, cla: yes, framework, waiting for tree to go green)

37556 [Material] Make RawChip.selected non-nullable.  (cla: yes, f: material design, framework)