DevTools: [JSDoc] Avoid partial arg list annotations in code except "profiler" module

This patch also fixes some ?Event -> !Event cases.

R=vsevik@chromium.org, lushnikov, vsevik

Review URL: https://codereview.chromium.org/301163005

git-svn-id: svn://svn.chromium.org/blink/trunk@175278 bbb929c8-8fbe-4397-9dbb-9b2b20218538