From Lyle Johnson: renamed 'implib_dir' to 'implib_file', and correctly ensure that it's 'dirname' exists.
From Lyle Johnson: renamed 'implib_dir' to 'implib_file', and
correctly ensure that it's 'dirname' exists.

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