message: Improve VkIndexType typeTraits handling.
diff: @@ -4606,7 +4606,7 @@ void VulkanHppGenerator::appendIndexTypeTraits( std::string & str ) const
  }
  else
  {
  - assert( value.vkValue == "eNoneKHR" );
  + assert( beginsWith( value.vkValue, "eNone" ) );
  }
  if ( !cppType.empty() )
  