message: impl Ord for StringValue
  Summary: Used in the following diff
diff: @@ -19,6 +19,7 @@ pub(crate) mod static_string;
  use std::{
  borrow::Borrow,
  + cmp::Ordering,
  fmt,
  fmt::{Debug, Display, Formatter},
  hash::{Hash, Hasher},
  @@ -182,6 +183,18 @@ impl<'v> Hash for StringValue<'v> {
  }
  }
  +impl<'v> PartialOrd for StringValue<'v> {
  + fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
  + self.as_str().partial_cmp(other.as_str())
  + }
  +}
  +
  +impl<'v> Ord for StringValue<'v> {
  + fn cmp(&self, other: &Self) -> Ordering {
  + self.as_str().cmp(other.as_str())
  + }
  +}
  +
  impl<'v> StringValue<'v> {
  /// Construct without a check that the value contains a string.
  ///
  