[turbofan] Revert invalid optimization of flooring division.

test/mjsunit/regress/regress-crbug-699282.js

Index: test/mjsunit/regress/regress-crbug-699282.js
diff --git a/test/mjsunit/regress/regress-crbug-699282.js b/test/mjsunit/regress/regress-crbug-699282.js
new file mode 100644
index 0000000000000000000000000000000000000000..726b1f7f320ff774f3e531cf0381c0ff4fe47293
--- /dev/null
+++ b/test/mjsunit/regress/regress-crbug-699282.js
@@ -0,0 +1,11 @@
+// Copyright 2017 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 v = 1;
+function foo() { return Math.floor(-v / 125); }
+assertEquals(-1, foo());
+%OptimizeFunctionOnNextCall(foo);
+assertEquals(-1, foo());