syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"ty::GenericArgKind::Const(parent_ct)"}]}
source_snippet:         ty::GenericArgKind::Const(parent_ct) => match parent_ct.kind() {
context_before:         ty::GenericArgKind::Lifetime(_) => {}
context_after:             ty::ConstKind::Infer(_)