[Bug driver/36312] should refuse to overwrite input file with output file

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36312

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #12 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Unfortunately, the patch broke Ada:
https://gcc.gnu.org/ml/gcc-patches/2014-11/msg00368.html

so I have reverted it.