[turbofan] Fix deoptimization of boolean bit constants.

test/mjsunit/compiler/regress-664490.js

Index: test/mjsunit/compiler/regress-664490.js
diff --git a/test/mjsunit/compiler/regress-664490.js b/test/mjsunit/compiler/regress-664490.js
new file mode 100644
index 0000000000000000000000000000000000000000..94094c7362972a699928bdbc05c64d6367ec0666
--- /dev/null
+++ b/test/mjsunit/compiler/regress-664490.js
@@ -0,0 +1,18 @@
+// Copyright 2016 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 foo = function(msg) {};
+
+foo = function (value) {
+  assertEquals(false, value);
+}
+
+function f() {
+  foo(undefined == 0);
+}
+
+%OptimizeFunctionOnNextCall(f);
+f();