Function resolve_entry_group 

fn resolve_entry_group<'tcx>(
    tcx: TyCtxt<'tcx>,
    def_id: DefId,
    entry: &JsonProperty,
    param_names: &[String],
    has_names: bool,
    in_group: bool,
) -> Vec<Property<'tcx>>

Resolve a single JSON any entry into its property group (empty on error).