Update gnome-icon-theme to 3.14.1 and alias adwaita-icon-theme.
In GNOME 3.14, gnome-icon-theme and gnome-icon-theme-symbolic were merged into
adwaita-icon-theme, because the symbolic icons are no longer considered
optional.[1]
Moving to the latest stable version of this package fixes the lack of symbolic
icons for GTK+3 in Homebrew.
The tests I've written are simple sanity checks that ensure certain files were
created in the install process.
Someone with GTK+3 knowledge could probably write better ones that check if GTK+
properly detects the icon files.
[1]: https://mail.gnome.org/archives/desktop-devel-list/2014-April/msg00086.html
The gnome-icon-theme-symbolic package (merged into adwaita-icon-theme, we call
it gnome-icon-theme for historic reasons) requires librsvg to generate PNG files
from the symbolic icon SVG files.
(This was not necessary beforehand, because all icons in the original
gnome-icon-theme were PNGs)
ClosesHomebrew/homebrew#37306.
Signed-off-by: Tim D. Smith <git@tim-smith.us>
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