Bullets in doc comments rendered as "Discussion," labels are dropped.

[Dave Abrahams]

For example, in all clients I can get my hands on:

  /// Returns a sequence whose elements describe each rule being recognized at
  /// `position`, where the rule started, and how many of its RHS symbols have
  /// been recognized.
  ///
  /// - Precondition: no other progress report for `self` exists.

The precondition is rendered as

Discussion

no other progress report for self exists.

Which is really misleading. Even if “Discussion” is unavoidable, the bullet label should be preserved (perhaps unless it is exactly “Discussion”)

[Alex Hoppen]

Tracked in Apple’s issue tracker as rdar://120685874