61257 [devicelab] This no-op change marks 3 tests to run on LUCI builders. (cla: yes, team, team: infra, waiting for tree to go green)

61258 Adds semantics information for the popup menu item (cla: yes, f: material design, framework, waiting for tree to go green)

61261 [flutter_tools] generate a synthetic flutter_gen package on pub get (cla: yes, tool)

61262 Renamed ContainedButton et al. to ElevatedButton et al. (cla: yes, f: material design, framework, waiting for tree to go green)

61265 Added web compiler debug metadata (cla: yes, team, tool)

61266 implement handlePointerEventRecord for LiveWidgetController (a: tests, cla: yes, framework, waiting for tree to go green)