v0.9 doesn't support *var expressions in tuples/lists/sets

[toejough]

v0.9 release notes mention "add support for *var expressions in tuple assignment", but none of the set/tuple/list items in the following snippet parse:

set_items = {*[1, 2, 3], 5}
tuple_items = (*{1, 2, 3}, 5)
list_items = [*(1, 2, 3), 5]

Those are all valid expressions (in 3.7.2, anyway - I don't remember where the *-expansion was introduced).

Also, the error Baron gives says consider that python does not yet parse python 3 code integrally, and I'm not quite sure how to parse that myself. Should that first "python" be "baron"?

(edited to simplify the snippet further) (edited to diversify the snippet further)

[toejough]

Oh, looks like #137 covers this.