michael@0: function C() {
michael@0:     this.m = function () {};  // JSOP_SETMETHOD
michael@0: }
michael@0: 
michael@0: var a = [new C, new C, new C, new C, new C, new C, new C, new C, new C];
michael@0: var b = [new C, new C, new C, new C, new C, new C, a[8],  new C, new C];
michael@0: 
michael@0: var thrown = 'none';
michael@0: try {
michael@0:     for (var i = 0; i < 9; i++) {
michael@0: 	a[i].m();
michael@0: 	b[i].m = 0.7;  // MethodWriteBarrier required here
michael@0:     }
michael@0: } catch (exc) {
michael@0:     thrown = exc.name;
michael@0: }
michael@0: assertEq(thrown, 'TypeError');