Now that standard exceptions are builtin, we don't need two phase init or fini of the builtin module.
Now that standard exceptions are builtin, we don't need two phase init
or fini of the builtin module.

_PyBuiltin_Init_1 => _PyBuiltin_Init
_PyBuiltin_Init_2 removed
_PyBuiltin_Fini_1 removed
_PyBuiltin_Fini_2 removed

These functions are used to initialize the _exceptions module.

init_exceptions added
fini_exceptions added

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