>># 
>># Copyright 1990, 1991 by the Massachusetts Institute of Technology and
>># UniSoft Group Limited.
>># 
>># Permission to use, copy, modify, distribute, and sell this software and
>># its documentation for any purpose is hereby granted without fee,
>># provided that the above copyright notice appear in all copies and that
>># both that copyright notice and this permission notice appear in
>># supporting documentation, and that the names of MIT and UniSoft not be
>># used in advertising or publicity pertaining to distribution of the
>># software without specific, written prior permission.  MIT and UniSoft
>># make no representations about the suitability of this software for any
>># purpose.  It is provided "as is" without express or implied warranty.
>># 
>># $XConsortium: frgc.m,v 1.6 92/06/11 16:16:08 rws Exp $
>># 
>>#      SCCS:  @(#)  EGC.mc Rel 1.5	    (10/25/91)
>>#
>>TITLE XFreeGC CH05
>>ASSERTION A XFreeGC-1
A call to XFreeGC destroys the GC specified by the gc
argument, and all associated storage.
>>STRATEGY
Create a GC with XCreateGC.
Free the GC with XFreeGC.
Set the clip mask of the gc with XSetClipMask.
Verify that a BadGC error occurred.
>>ASSERTION A XFreeGC-2
When the GC argument does not name a defined GC, then a
BadGC error occurs.
>>STRATEGY
Create a GC.
Set GC id to -1 using XTestSetGContextOfGC.
Call test function using bad GC as the GC argument.
Verify that a BadGC error occurs.
