{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"//"}]}
                    // FIXME(RPITIT): Don't replace RPITITs with inference vars.
                    // but we can eagerly register inference variables for them.
                    // FIXME(inherent_associated_types): Extend this to support `ty::Inherent`, too.