class SyntaxTree::Parser

def on_mlhs_add_star(mlhs, part)

) -> MLHS
(nil | ARefField | Field | Ident | VarField) part
MLHS mlhs,
on_mlhs_add_star: (
:call-seq:
def on_mlhs_add_star(mlhs, part)
  beginning = consume_operator(:*)
  ending = part || beginning
  location = beginning.location.to(ending.location)
  arg_star = ArgStar.new(value: part, location: location)
  location = mlhs.location.to(location) unless mlhs.parts.empty?
  MLHS.new(parts: mlhs.parts << arg_star, location: location)
end