// An onNewPromise handler can disable itself.
if (!('Promise' in this))
quit(0);
var g = newGlobal();
var dbg = new Debugger(g);
var log;
dbg.onNewPromise = function (promise) {
log += 'n';
dbg.onNewPromise = undefined;
};
log = '';
new g.Promise(function (){});
new g.Promise(function (){});
assertEq(log, 'n');