message: Make pretty::Prec private
diff: @@ -7,7 +7,7 @@ use crate::{StringId, StringInterner};
  /// Term precedences
  #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
  -pub enum Prec {
  +enum Prec {
  Top = 0,
  Let,
  Fun,
  @@ -109,7 +109,7 @@ impl<'interner, 'arena> Context<'interner, 'arena> {
  self.term_prec(Prec::Top, term)
  }
  - pub fn term_prec<Range>(
  + fn term_prec<Range>(
  &'arena self,
  prec: Prec,
  term: &Term<'_, Range>,
  