82327 update the DragStartBehavior documetations (framework, f: material design, cla: yes, f: cupertino, waiting for tree to go green)

82328 use throwsXxx instead of throwsA(isA()) (a: tests, tool, framework, f: material design, cla: yes, f: cupertino, waiting for tree to go green)

82387 first part of applying sort_child_properties_last (framework, f: material design, cla: yes, f: cupertino, waiting for tree to go green)

82441 Sets textInputAction property of CupertinoSearchTextField to TextInputAction.search by default (framework, cla: yes, f: cupertino, waiting for tree to go green)