Fix for PR/6552

[Rainer Orth]

Rainer Orth <ro@techfak.uni-bielefeld.de> writes:

> I'm currently running full bootstraps and regtests on mips-sgi-irix6.5 with
> the patch included and the workaround
> 
> 	http://gcc.gnu.org/ml/gcc-patches/2003-11/msg00462.html
> 
> reverted.

unfortunately, this didn't work: while a-chahan.adb now compiles, I get
another ICE later:

../../xgcc -B../../ -c -g -O2      -W -Wall -gnatpg  a-colien.adb -o a-colien.o
+===========================GNAT BUG DETECTED==============================+
| 3.4 20031114 (experimental) (mips-sgi-irix6.5) GCC error:                |
| in gnat_expand_stmt, at ada/trans.c:4161                                 |
| Error detected at a-colien.adb:69:17                                     |

	Rainer