[review v2] Don't call tui_show_source from tui_ui_out

[Tom Tromey (Code Review)]

Tom Tromey has posted comments on this change.

Change URL: https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/652
......................................................................


Patch Set 2:

I'm checking in this series now.  I've rebased it and re-run the TUI tests
on x86-64 Fedora 28.


-- 
Gerrit-Project: binutils-gdb
Gerrit-Branch: master
Gerrit-Change-Id: Id71098e597ee4ebfef0429562baa45f537bd2c2b
Gerrit-Change-Number: 652
Gerrit-PatchSet: 2
Gerrit-Owner: Tom Tromey <tromey@sourceware.org>
Gerrit-Reviewer: Tom Tromey <tromey@sourceware.org>
Gerrit-Comment-Date: Fri, 20 Dec 2019 16:15:35 +0000
Gerrit-HasComments: No
Gerrit-Has-Labels: No
Gerrit-MessageType: comment