syntax_data: {"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"ty::ConstKind::Param(param_ct)"}]}
source_snippet:                         ty::ConstKind::Param(param_ct) if param_ct.index == self.index => Some(ty),
context_before:                     match param_ct.kind() {
context_after:                         _ => None,