bug#20445: excessive redisplay / echo area resizing during byte-compilation

[martin rudalics]

> Current master on RHEL 7.1, Lucid toolkit, without toolkit-scroll-bars.
>
> emacs -Q ./lisp/org/org.el
>
> menu-bar, emacs-lisp, byte-compile this file
>
> During compilation, the display flickers a lot.
> Especially noticeable in the scroll-bar.
> The echo area resizes itself a lot up and down rapidly, which is pretty
> distracting.

What's your value of `resize-mini-windows'?  Here it happens only with
`resize-mini-windows' set to t.  The default 'grow-only doesn't exhibit
the problem.

martin