Add additional guards for Keywords.merge/3 (#8574)
Add additional guards for Keywords.merge/3 (#8574)


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