=== tests/cases/compiler/b.ts ===
///<reference path="a.ts"/>
declare enum E {
>E : E
}
=== tests/cases/compiler/a.ts ===
/*! Keep this pinned comment */
declare enum C {
>C : C

    a,
>a : C

    b,
>b : C

    c
>c : C
}

// Don't keep this comment.
declare enum D {
>D : D
}