[gfortran] Adding quite a few intrinsics

[FX Coudert <fxcoudert at gmail dot com>]

The attached patch (which the fortran@ subscribers already had a glance 
at) adds the FTELL, FGETC, FGET, FPUTC, FPUT, COMPLEX, AND, OR and XOR 
intrinsics to gfortran (they were available in g77 in category "GNU 
intrinsics"). They come with 9 testcases testing as much as I could 
think of (both compiling, simplifying intrinsics, linking and 
diagnosis). They don't come with a ChangeLog, because it's rather dull 
to write (mainly "new function" and "new file" everywhere) and I'm on 
it and will send it as soon as I get it done.

The ony thing I'm not quite satisfied of is the handling of COMPLEX 
with INTEGER arguments. Currently, they basically get converted into 
the default real kind, because I don't see a proper way to do it in the 
general case. Suggestions are of course welcome, but I'd prefer getting 
this commited even if that means fixing it later.

Built and tested this on ppc-darwin (I compared the behaviour with g77 
behaviour to be sure). I apologize for not being able to make a proper 
regtesting (i only do have a laptop, not much horsepower and few 
occasions to charge the battery).


Thanks for reviewing this!
FX


:ADDPATCH fortran:

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