[analyzer] Tweak the test script

Rename the pre_run_static_analyzer script into cleanup_run_static_analyzer
and use it to clean up after the reference build - which is done as part of
adding a new project to the system.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143568 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed