per Jeremy's email, remove the _WITH_CAST versions of macros. g++ still has errors from the casts of asdl_seq_GET to cmpop_ty, but otherwise it's C++ clean.
per Jeremy's email, remove the _WITH_CAST versions of macros. g++
still has errors from the casts of asdl_seq_GET to cmpop_ty, but
otherwise it's C++ clean.

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