Summary:

Fixed a clang: error: OBJECT_MODE setting any is not recognized and is not a valid setting
in https://lab.llvm.org/buildbot/#/builders/214/builds/9125/steps/6/logs/FAIL__Clang__dwarf-version_c

The error is caused by the modification of clang/test/lit.cfg.py of the commit of https://reviews.llvm.org/D142660