message: Handle spurious uninitialized warnings in GCC9 (20.04)
diff: @@ -120,6 +120,9 @@ struct InternedString {
  return isExt() ? extBytes_ : intBytes_;
  }
  +#pragma GCC diagnostic push
  +#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
  +#pragma GCC diagnostic ignored "-Wuninitialized"
  void swap(InternedString & other) noexcept
  {
  // NOTE: this swap operator is complicated to avoid violating
  @@ -170,6 +173,7 @@ struct InternedString {
  }
  }
  }
  +#pragma GCC diagnostic pop
  constexpr size_t size() const noexcept
  {
  