Parses invalid code as valid in tuple esque structure

[mhanberg]

Description

Failing test

code = """
{
  attributes: %{
    "polyline" => Faker.Lorem.characters()
  },
  type: "shape"
}
"""

assert s2q(code) == Spitfire.parse(code)

Fails with

Assertion with == failed
code:  assert s2q(code) == Spitfire.parse(code)
left:  {:error, {[line: 5, column: 16], "syntax error before: ", "eol"}}
right: {
      :ok,
      {
        :{},
        [end_of_expression: [newlines: 1, line: 6, column: 2], newlines: 1, closing: [line: 6, column: 1], line: 1, column: 1],
        [[attributes: {:%{}, [newlines: 1, closing: [line: 4, column: 3], line: 2, column: 15], [{"polyline", {{:., [line: 3, column: 30], [{:__aliases__, [last: [line: 3, column: 25], line: 3, column: 19], [:Faker, :Lorem]}, :characters]}, [closing: [line: 3, column: 42], line: 3, column:
31], []}}]}, type: "shape"]]
      }
    }

Spitfire should report this as an error