Code.Normalizer: Use correct meta fields in normalize_call/2

[zachallaun]

normalize_call/2 was passing the old state.parent_meta when normalizing call arguments, which prevented :line meta from being correctly applied to unwrapped literals. This had the effect of causing comment collapses in certain cases:

# This would fail
assert_same """
            block do
              # before 1
              1 + 1

              # before 2
              2 + 2
            end
            """,
            literal_encoder: fn literal, _ -> {:ok, literal} end

# The newline would collapse, resulting in
"""
block do
  # before 1
  1 + 1
  # before 2
  2 + 2
end
"""

[josevalim]

💚 💙 💜 💛 ❤️

[zachallaun]

Thank you for merging!

I'm not sure if there's a policy for this, but is it possible to have this PR backported to the v1.14 branch to be included in the next patch release?

[josevalim]

Backported.