[Patch, Fortran] Simplify Bessel_* functions

[FX]

> 2008-05-06  Tobias Burnus  <burnus@net-b.de>
>
> 	PR fortran/36117
> 	* intrinsic.c (add_functions): Call gfc_simplify_bessel_*.
> 	* intrinsic.h: Add prototypes for gfc_simplify_bessel_*.
> 	* simplify.c (gfc_simplify_bessel_j0,gfc_simplify_bessel_j1,
> 	gfc_simplify_bessel_jn,gfc_simplify_bessel_y0,
> 	gfc_simplify_bessel_y1,gfc_simplify_bessel_yn): New.

OK to commit. (I thought we already did simplify these, but I might  
have confused those with erf{,c}.)

FX
>

-- 
François-Xavier Coudert
http://www.homepages.ucl.ac.uk/~uccafco/