Use proper left == right in IEx signature tests
Use proper left == right in IEx signature tests

kelvinst/elixir,pedrosnk/elixir,ggcampinho/elixir,kimshrier/elixir,lexmag/elixir,kimshrier/elixir,kelvinst/elixir,joshprice/elixir,pedrosnk/elixir,ggcampinho/elixir,lexmag/elixir,michalmuskala/elixir,elixir-lang/elixir