Remove the optimized construct stub.

test/mjsunit/object-define-property.js

Index: test/mjsunit/object-define-property.js
diff --git a/test/mjsunit/object-define-property.js b/test/mjsunit/object-define-property.js
index 835d0e0a558895c882fa3071c1f777291064a641..cbb2d211f443523127d89df2c238578cae6b329e 100644
--- a/test/mjsunit/object-define-property.js
+++ b/test/mjsunit/object-define-property.js
@@ -1195,3 +1195,12 @@ Assign(new C);
 %OptimizeFunctionOnNextCall(Assign);
 Object.defineProperty(C.prototype, "blubb", {get: function() { return -42; }});
 Assign(new C);
+
+// Test that changes to the prototype of a simple constructor are not ignored,
+// even after creating initial instances.
+function C() {
+  this.x = 23;
+}
+assertEquals(23, new C().x);
+C.prototype.__defineSetter__('x', function(value) { this.y = 23; });
+assertEquals(void 0, new C().x);