Modify lldb_suite.py to enable python debugging

[lanza]

Summary

pudb and pdb interfere with the behavior of the inspect module. calling
inspect.getfile(inspect.currentframe()) returns a different result
depending on whether or not you're in a debugger. Calling
os.path.abspath on the result of inspect.getfile(...) normalizes the
result between the two environments.

[lanza]

clean up

test/use_lldb_suite.py

 import inspect
 import os
 import sys
 
 
 def find_lldb_root():
-    lldb_root = os.path.dirname(inspect.getfile(inspect.currentframe()))
+    lldb_root = os.path.dirname(
+        os.path.abspath(inspect.getfile(inspect.currentframe()))
+    )
     while True:
         lldb_root = os.path.dirname(lldb_root)
         if lldb_root is None:
             return None
 
         test_path = os.path.join(lldb_root, "use_lldb_suite_root.py")
         if os.path.isfile(test_path):
             return lldb_root