message: [TypeName] Simplify operator!=. NFCI.
diff: @@ -710,11 +710,7 @@ bool TypeAndOrName::operator==(const TypeAndOrName &other) const {
  }
  bool TypeAndOrName::operator!=(const TypeAndOrName &other) const {
  - if (m_type_pair != other.m_type_pair)
  - return true;
  - if (m_type_name != other.m_type_name)
  - return true;
  - return false;
  + return !(*this == other);
  }
  ConstString TypeAndOrName::GetName() const {
  