fixing super() calls, thanks to tolmasky

test/fixtures/execution/calling_super.js

@@ -0,0 +1,27 @@
+(function(){
+  var Base = function() {
+  };
+  Base.prototype.func = function(string) {
+    return 'zero/' + string;
+  };
+  var FirstChild = function() {
+  };
+  FirstChild.prototype.__proto__ = new Base();
+  FirstChild.prototype.func = function(string) {
+    return FirstChild.prototype.__proto__.func.call(this, 'one/') + string;
+  };
+  var SecondChild = function() {
+  };
+  SecondChild.prototype.__proto__ = new FirstChild();
+  SecondChild.prototype.func = function(string) {
+    return SecondChild.prototype.__proto__.func.call(this, 'two/') + string;
+  };
+  var ThirdChild = function() {
+  };
+  ThirdChild.prototype.__proto__ = new SecondChild();
+  ThirdChild.prototype.func = function(string) {
+    return ThirdChild.prototype.__proto__.func.call(this, 'three/') + string;
+  };
+  var result = (new ThirdChild()).func('four');
+  print(result === 'zero/one/two/three/four');
+})();