fix(kernel-test): revoked remotables now throw

Author: grypez

packages/kernel-test/src/vats/revocation-bootstrap.js

@@ -17,7 +17,7 @@ export function buildRootObject(vatPowers) {
       await E(revoker).slam();
       // XXX Methods called on a revoked object should reject, but currently
       // resolve with a 'revoked object' string.
-      await E(gate).foo().then(log);
+      await E(gate).foo().catch(log);
       log('done');
     },
   });