Fix tests

Author: tomasr8

Lib/inspect.py

@@ -857,8 +857,7 @@ def getsourcefile(object):
     Return None if no way can be identified to get the source.
     """
     filename = getfile(object)
-    all_bytecode_suffixes = importlib.machinery.DEBUG_BYTECODE_SUFFIXES[:]
-    all_bytecode_suffixes += importlib.machinery.OPTIMIZED_BYTECODE_SUFFIXES[:]
+    all_bytecode_suffixes = importlib.machinery.BYTECODE_SUFFIXES[:]
     if any(filename.endswith(s) for s in all_bytecode_suffixes):
         filename = (os.path.splitext(filename)[0] +
                     importlib.machinery.SOURCE_SUFFIXES[0])