Merge pull request swiftlang#436 from nathawes/update-cleanup-for-new-repos

[cleanup] Update cleanup script to remove new repos.

Author: shahmishal

cleanup

@@ -54,7 +54,10 @@ def main():
         'swift-corelibs-libdispatch',
         'swift-corelibs-xctest',
         'swift-stress-tester',
-        'swift-syntax'
+        'swift-syntax',
+        'swift-driver',
+        'swift-argument-parser',
+        'yams',
     ]
 
     if args.cleanup_cache: