47403 Trigger MouseRegion.toHover only on hover events (a: desktop, cla: yes, framework, team, waiting for tree to go green)

47419 support endless recorder for timeline (cla: yes, tool, waiting for tree to go green)

47428 Revert “implicit-casts: false” (a: internationalization, a: tests, cla: yes, f: material design, framework, team, tool)

47429 Roll engine 1e1f37107a07..0f90e6546bf3 (14 commits) (autoroller: commit, cla: yes)

47431 Reland implicit-casts: false (a: internationalization, a: tests, cla: yes, f: material design, framework, team, tool, waiting for tree to go green)