Replace the clang-cl+link build recipe with a single clang-cl invocation

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@1824 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5
Further simplify the 'run tests' command

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@1825 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5