message: Amend "Change AddressClass type from 'enum' to 'enum class'".
  r335599 changes usages of AddressClass, but doesn't change the type itself.
diff: @@ -823,7 +823,7 @@ enum FrameComparison {
  // relative data and the object file might be able to tell us that an address
  // in code is data.
  //----------------------------------------------------------------------
  -enum AddressClass {
  +enum class AddressClass {
  eInvalid,
  eUnknown,
  eCode,
  