[crankshaft] Reland "Only exclude explicit 'arguments' (and 'this') from liveness analysis."

test/mjsunit/regress/regress-612146.js

Index: test/mjsunit/regress/regress-612146.js
diff --git a/test/mjsunit/regress/regress-612146.js b/test/mjsunit/regress/regress-612146.js
new file mode 100644
index 0000000000000000000000000000000000000000..1bd3f0b1f0ccab43a6103715f69e69fa409d51b3
--- /dev/null
+++ b/test/mjsunit/regress/regress-612146.js
@@ -0,0 +1,33 @@
+// 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
+
+function f() {
+  var arguments_ = arguments;
+  if (undefined) {
+    while (true) {
+      arguments_[0];
+    }
+  } else {
+    %DeoptimizeNow();
+    return arguments_[0];
+  }
+};
+
+f(0);
+f(0);
+%OptimizeFunctionOnNextCall(f);
+assertEquals(1, f(1));
+
+function g() {
+    var a = arguments;
+    %DeoptimizeNow();
+    return a.length;
+}
+
+g(1);
+g(1);
+%OptimizeFunctionOnNextCall(g);
+assertEquals(1, g(1));