Formatter does not indent case and if when the result is explicitly typed

[BigBoyBarney]

Hi!

I saw in #13002 that some people advocate for the removal of alignment in the formatter, which I personally think would be horrible, as I really like alignment, but that's besides the point.

The following cases work as expected, with nicely aligned if-else and case-when blocks.

x = if rand(2) == 1
      "One"
    else
      "Zero"
    end

x = case rand(2)
    when 0
      "Zero"
    when 1
      "One"
    end

If, however, the result, in this case x is explicitly typed, the formatter forces a 0 indent

x : String = if rand(2) == 1
  "One"
else
  "Zero"
end

x : String = case rand(2)
when 0
  "Zero"
when 1
  "One"
end

[BigBoyBarney]

The following is indented incorrectly as well:

@[Flags]
enum Snorlax
  One
  Two
end

def test
  one = Snorlax::One

  one | case
  when true
    Snorlax::Two
  else
    Snorlax::Two
  end
end

p! test

Is this the same underlying issue, or should I open a new one?

[straight-shoota]

I think the underlying issue is essentially the same, but the fix isn't
Since #15429 is already out (and doesn't fix this case), it should be a separate issue.