{"ast_node_type":"import","tokens":[{"end":83,"kind":"keyword","start":0,"text":"///"}]}
    /// so do not use to make a decision that may lead to a successful compilation.
    /// Used for ambiguous method call error reporting. Uses probing that throws away the result internally,
    fn candidate_source(&self, candidate: &Candidate<'tcx>, self_ty: Ty<'tcx>) -> CandidateSource {