4033832cba
Many of the setters are ignored unless others are set - this change: * Lists these conditions exhaustively. * Uses more concise language to avoid overshadowing the main details of what the setter sets. * Tweaks the language from 'is ignored' to 'shouldn't be called', to open up the future possibility of throwing an error if these are called without the 'required' setter also being present (see Issue: #8957). #minor-release PiperOrigin-RevId: 376162385