Fix for-loop with const/let and empty condition/iteration statements.

test/mjsunit/harmony/empty-for.js

Index: test/mjsunit/harmony/empty-for.js
diff --git a/test/mjsunit/regress/regress-354433.js b/test/mjsunit/harmony/empty-for.js
similarity index 74%
copy from test/mjsunit/regress/regress-354433.js
copy to test/mjsunit/harmony/empty-for.js
index 80ea28623021bafc8ab291cc2bdd1078424610fb..02211260ff5d1bd2cd50feb16c6b09b1984f69ea 100644
--- a/test/mjsunit/regress/regress-354433.js
+++ b/test/mjsunit/harmony/empty-for.js
@@ -25,30 +25,48 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax
-
-var __v_0 = {};
-var __v_5 = {};
-function __f_2() {
-  this.__defineGetter__('str', function() { return __f_2(this); });
-  this.str = "1";
-  this.toString = function() {
-    return this.str;
-  };
-};
-
-__v_5 = new __f_2();
-__v_0 = new __f_2();
-
-function __f_5(fun,a,b) {
-  __v_5.str = a;
-  __v_0.str = b;
-  fun(__v_5, __v_0);
+// Flags: --harmony-scoping
+
+"use strict";
+
+function for_const() {
+  for (const x = 1;;) {
+    if (x == 1) break;
+  }
+  for (const x = 1; x < 2;) {
+    if (x == 1) break;
+  }
+  for (const x = 1;; 0) {
+    if (x == 1) break;
+  }
 }
 
-function __f_8(a,b) { return a%b };
+for_const();
+
+function for_let() {
+  for (let x;;) {
+    if (!x) break;
+  }
+  for (let x; x < 2;) {
+    if (!x) break;
+  }
+  for (let x = 1;; x++) {
+    if (x == 2) break;
+  }
+}
+
+for_let();
+
+function for_var() {
+  for (var x;;) {
+    if (!x) break;
+  }
+  for (var x; x < 2;) {
+    if (!x) break;
+  }
+  for (var x = 1;; x++) {
+    if (x == 2) break;
+  }
+}
 
-__f_5(__f_8, 1 << 30, 1);
-__f_5(__f_8, 1, 1 << 30);
-%OptimizeFunctionOnNextCall(__f_8);
-__f_5(__f_8, 1, 1 << 30);
+for_var();