Fixes for FreeBSD, including some fairly obvious copy-and-paste errors.

libc++ now mostly works on FreeBSD with libcxxrt and this patch applied to the base system:

http://lists.freebsd.org/pipermail/freebsd-hackers/attachments/20110920/e666632c/xlocale-0001.obj

Summary of tests on FreeBSD:


****************************************************
Results for /root/libcxx/test:
using FreeBSD clang version 3.0 (trunk 135360) 20110717
Target: x86_64-unknown-freebsd9.0
Thread model: posix
with -std=c++0x -stdlib=libc++ -I/root/libcxx/include -L/root/libcxx/build/lib
----------------------------------------------------
sections without tests   : 1
sections with failures   : 48
sections without failures: 1015
                       +   ----
total number of sections : 1064
----------------------------------------------------
number of tests failed   : 145
number of tests passed   : 4179
                       +   ----
total number of tests    : 4324
****************************************************

(Many due to this clang version not supporting C++ atomics)

More fixes to follow...

llvm-svn: 140245