49366 Revert “Do not rebuild Routes when a new opaque Route is pushed on top” (cla: yes, f: cupertino, f: material design, framework)

49368 reland add lifecycle enum and remove workaround (cla: yes, framework, team, waiting for tree to go green)

49371 remove empty string in string interpolations (cla: yes, tool, waiting for tree to go green)

49373 [flutter_tools] remove linter dep from BUILD.gn (cla: yes, tool)

49376 Reland “Do not rebuild Routes when a new opaque Route is pushed on top” (cla: yes, framework, perf: speed, severe: performance, waiting for tree to go green)