syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"true"}]}
source_snippet:                     true => write!(self, "{:?}", ty.kind())?,
context_before:                 ty::BoundTyKind::Param(def_id) => match self.should_print_verbose() {
context_after:                     false => write!(self, "{}", self.tcx().item_name(def_id))?,