Patch GCC for profile-func-internal-id=0 coverage-callback=1

Hello, Honza. David Li said you might be able to help me get this patch into GCC trunk. I sent mail for this on August 27, but didn't get a reply. It's a small change to make these two options work together: profile-func-internal-id=0 coverage-callback=1 Let me know what I can do to get this s

Patch tree-profile.c to support profile-func-internal-id parameter

This patch is for svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_9. I add support for the profile_func_internal-id in the instrumentation generated for __coverage_callback. Add support for the profile-func-internal-id parameter to the coverage callback. Without this change, the function identifi