Consider going to the most recently visited file when closing a file

[njx]

I often "temporarily" jump to a file (e.g. using Quick Open) just to look at something in it, and then close it. Closing it goes to the file immediately before it in the working set. I think it should actually go to the most recently visited file (so you end up back in the file you were in before jumping to the new file).

[peterflynn]

Yeah, I agree. When I originally added the MRU tracking code, I didn't go this far because it looked like other editors with MRU tabbing (Eclipse, Sublime) don't use MRU when closing a tab. But this has always felt annoying to me -- I'd be pretty happy to deviate from other editors here :-)

[pthiess]

Reviewed, assigned to @peterflynn

[redmunds]

FBNC to @peterflynn

[peterflynn]

Actually NJ's bug, so FBNC @njx

[njx]

Looks good, closing.