Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Merge binutils 2.17.50 to head. This brings a number of improvements to
x86 CPU support, better support for powerpc64, some new directives, and
many other things. Bump __FreeBSD_version, and add a note to UPDATING.

Thanks to the many people that have helped to test this.

Obtained from: projects/binutils-2.17

This commit was generated by cvs2svn to compensate for changes in r130803,
which included commits to RCS files with non-trunk default branches.

Import of GDB version 6.1.1 (stripped; see FREEBSD-Xlist rev. 1.6).

Vendor import of GDB 5.2.
These bits are taken from the FSF gdb_5_2-branch anoncvs repo
on 27-June-2002 12:01:00 EDT.

Virgin import of gdb-4.18

Import GDB in its full glory (all 25mb). We'll put it on a diet once it's
fully registered.

(This is the second try, the first import ignored .info files but not .info-*
files, for some reason. I'm going to make this consistent.)

Reviewed by: core
Approved for: 2.2