syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"ty::Infer(ty::TyVar(_))"}]}
source_snippet:                 ty::Infer(ty::TyVar(_)) => {
context_before:             match ty.kind() {
context_after:                     let resolved_ty = infcx.shallow_resolve(ty);