Restore setting __file__ in parse_compile_execute

[jepler]

This seems to have been lost, possibly in a merge.

Closes: #8881

[tannewt]

Thank you!

[jepler]

I tested with this in code.py and an empty sub.py:

print("file", __file__, "name", __name__)
import sub
print("file", sub.__file__, "name", sub.__name__)

prints:

code.py output:
file code.py name __main__
file sub.py name sub