Add resolving of symlinks

Author: bd1976bris

clang/test/Driver/DTLTO/filename.py

@@ -1,4 +1,4 @@
 from pathlib import Path
 import sys
 
-print(f"filename.py:{Path(sys.argv[1]).name}")
+print(f"filename.py:{Path(sys.argv[1]).resolve().name}")