michael@0: // |jit-test| error:TypeError
michael@0: 
michael@0: // Binary: cache/js-dbg-64-9ca0a738a8ad-linux
michael@0: // Flags:
michael@0: //
michael@0: __defineSetter__("x", Array.reduce)
michael@0: x = Proxy.create(function() {},
michael@0: this.watch("x",
michael@0: function() {
michael@0:   yield
michael@0: }))