[PATCH] For broken exception handling in GDB on AIX platform

[Sangamesh Mallayya]

Hi,

I work with nitish.
Just wanted to check on this patch contribution if anyone has comments yet 
or changes are fine.  As of now all the comments are answered. 

Here is link https://gcc.gnu.org/ml/gcc-patches/2017-04/msg00121.html

Thanks,
-Sangamesh