Fix typo in r19923 (bounds check offset propagation)

BUG=chromium:352929
LOG=n
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/201303002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19969 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/hydrogen-bce.cc

@@ -183,7 +183,7 @@ class BoundsCheckBbData: public ZoneObject {
         lower_check_ = new_check;
       } else {
         TightenCheck(lower_check_, new_check);
-        UpdateLowerOffsets(upper_check_, upper_offset_);
+        UpdateLowerOffsets(lower_check_, lower_offset_);
       }
     } else {
       // Should never have called CoverCheck() in this case.

test/mjsunit/regress/regress-crbug-352929.js

+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+var dummy = new Int32Array(100);
+array = new Int32Array(100);
+var dummy2 = new Int32Array(100);
+
+array[-17] = 0;
+function fun(base,cond) {
+  array[base - 1] = 1;
+  array[base - 2] = 2;
+  if (cond) {
+    array[base - 4] = 3;
+    array[base - 5] = 4;
+  } else {
+    array[base - 6] = 5;
+    array[base - 100] = 777;
+  }
+}
+fun(5,true);
+fun(7,false);
+%OptimizeFunctionOnNextCall(fun);
+fun(7,false);
+
+for (var i = 0; i < dummy.length; i++) {
+  assertEquals(0, dummy[i]);
+}
+for (var i = 0; i < dummy2.length; i++) {
+  assertEquals(0, dummy2[i]);
+}