an arglist have the 'function/method' icon, all others have the
'variable' icon.
Note: XPMs were created from the PNGs with the ImageMagick 'convert'
program.



git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@3930 ea778897-0a13-0410-b9d1-a72fbfd435f5