alias_for_import_name():  Dueling compiler warnings ;-) Squash new warnings from VC 7.1 about mixing signed and unsigned types in comparisons.  I can see why `len` was changed to size_t here, but don't see why `i` was also changed.  Change `i` back to int.
alias_for_import_name():  Dueling compiler warnings ;-)
Squash new warnings from VC 7.1 about mixing signed and
unsigned types in comparisons.  I can see why `len` was
changed to size_t here, but don't see why `i` was also
changed.  Change `i` back to int.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator