Enum comments removed

[theimowski]

Description

Triple slash comments for an Enum get removed for all but first case.

Repro code

https://jindraivanek.gitlab.io/fantomas-ui/#?code=C4TwDgpgBAglC8AoKKoHoNQMIHsC2eEAdsFAGY4BO2AhgM4RwC0UYlEDlAbhACbKoAPrQZx4UAAwCUGNNnyES5KiIgAhKC3Z4cPfqijCs9dQigBGaeky4CxUhWrGGWTVBoAbOjijbdfKyMTV3EAJiA

Given following sample.fs:

type A =
    /// Comment for CaseA - preserved
    | CaseA = 0
    /// Comment for CaseB - removed
    | CaseB = 1
    /// Comment for CaseC - also removed
    | CaseC = 2

Run fantomas sample.fs, result is:

type A =
    /// Comment for CaseA - preserved
    | CaseA = 0
    | CaseB = 1
    | CaseC = 2

---

Same applies to double slash comments:

type A =
    // Comment for CaseA - preserved
    | CaseA = 0
    // Comment for CaseB - removed
    | CaseB = 1
    // Comment for CaseC - also removed
    | CaseC = 2

But if you make it an union, it works ok:

type A =
    /// Comment for CaseA - preserved
    | CaseA
    /// Comment for CaseB - all preserved now
    | CaseB
    /// Comment for CaseC - all preserved now
    | CaseC