Blender Git Loki

Patch [#23443] Change outliner filter into search
Shane Ambler (sambler) for this 12-month vintage!

From description:
One thing with the outliner filter box is it only filters items that
are currently visible. To find what you want you need to manually
expand a few levels so that what you want to find is visible.

This small patch expands items when filtering is done - effectively
turning it into a search.

Currently this does not alter the datablocks view as expanding all
entries takes waaaay tooooo long.
I prevent the expansion of RNA entries for userprefs which prevents
infinite recursion but the datablocks list is just too big for this
approach. I think it would need a custom outliner_build_tree for a
full search.