closes #74746: should return empty module when __main__ is imported

Fixes a problem when a module imports __main__. While this is benign
normally (pylint just imports itself, and exposes its __main__ module to
astng, which is wrong, but not fatal), this led to a crash in our deployed,
standalone pylint version.

The fix is now that a completely empty module is returned, since neither the
linter nor the module in question can make any assumptions about __main__.

(patch by google)

0 files changed, 0 insertions, 0 deletions