syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"ty::Adt(lhs_def,"}]}
source_snippet:             ty::Adt(lhs_def, lhs_args) => match rhs.kind() {
context_after:                 ty::Adt(rhs_def, rhs_args) => {