[patch, fortran] Some more TRIM optimizations

[Thomas Koenig]

Hi Jerry,

>
>> Ping ** 0.5714
>>
>> Full patch can be found at
>>
>> http://gcc.gnu.org/ml/fortran/2011-06/msg00053.html
>
> OK and thanks for patch.

Sending        fortran/ChangeLog
Sending        fortran/frontend-passes.c
Sending        testsuite/ChangeLog
Adding         testsuite/gfortran.dg/trim_optimize_7.f90
Transmitting file data ....
Committed revision 174944.

Thanks for the review!

	Thomas