Right-click > Show in File Tree doesn't scroll item into view

[peterflynn]

1. Open a project where the file tree is tall enough to require scrolling
2. Open a file that would be "below the fold" in the tree. (E.g. in the Brackets source, with src and a couple of its subfolders expanded, open a unit test file via Quick Open).
3. Right-click the file in the working set and choose 'Show in File Tree'

Result: The necessary tree nodes expand, but the tree doesn't scroll to make the item visible.

This worked in 1.0 but is broken in 1.1...

[marcelgerber]

This issue was caused by c931ef2.
The issue is that the expanded file tree is not yet rendered when the code tries to scroll the expanded item into view.

[nethip]

@marcelgerber Would your PR #10689 take care of this issue?

[marcelgerber]

No it won't, it only applies to user scrolling.
Fixing this issue is not as easy as the other one as the _renderTree call is, IIRC, caused by an event in this case (in an event handler that's used for multiple types of events, so we can't easily determine who sent it).