R1:31bd3679f025

Skip loading attached objects for files when we know the file is visible

Summary:
Depends on D19222. Ref T13106. We currently execute an edge query (and possibly an object query) when loading builtin files, but this is never necessary because we know these files are always visible.

Instead, skip this logic for builtin files and profile image files; these files have global visibility and will never get a different policy result because of file attachment information.

(In theory, we could additionally…