Revert the Makefile change @r1824

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@1831 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5
Again: build RTL as a part of the Clang (still use the old RTL though)

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@1832 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5
Kill MSBuild on failure too

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@1833 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5