message: Remove warning in doc comment.
  Summary: The warning no longer applies.
diff: /// null;` for the same reason as above.
  /// - Field accesses returning an uninstantiable class will always return
  /// `null`.
  -///
  -/// NOTE: This pass should not be run between invocations of RemoveUnreachable
  -/// and TypeErasure as the latter can effectively re-introduce constructors
  -/// removed by the former.
  class RemoveUninstantiablesPass : public Pass {
  public:
  RemoveUninstantiablesPass() : Pass("RemoveUninstantiablesPass") {}
  