syntax_data: {"ast_node_type":"other","tokens":[{"end":29,"kind":"keyword","start":0,"text":"ty::Error(_)"}]}
source_snippet:             ty::Error(_) => {
context_before:             ty::FnDef(def_id, args) => interner.fn_sig(def_id).instantiate(interner, args),
context_after:                 // ignore errors (#54954)