{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"//"}]}
        // We don't ever need two-phase here since we throw out the result of the coercion.
        let cause = self.cause(DUMMY_SP, ObligationCauseCode::ExprAssignable);
        let coerce = Coerce::new(self, cause, AllowTwoPhase::No, true);