Remove obsolete 'arguments' local variable handling.

test/mozilla/mozilla.status

Index: test/mozilla/mozilla.status
diff --git a/test/mozilla/mozilla.status b/test/mozilla/mozilla.status
index 7f146a079bb4fec484ce75a4de93f9b5f0d04b54..62a3433131c7282e20aad253fcf1f8b34cbc5fdb 100644
--- a/test/mozilla/mozilla.status
+++ b/test/mozilla/mozilla.status
@@ -55,7 +55,6 @@
 
   # TODO(turbofan): These are all covered by mjsunit as well. Enable them once
   # we pass 'mjsunit' and 'webkit' with TurboFan.
-  'js1_4/Functions/function-001': [PASS, NO_VARIANTS],
   'js1_5/Regress/regress-80981': [PASS, NO_VARIANTS],
 
   # TODO(turbofan): Causes timeouts since top-level code is optimized.
@@ -267,6 +266,10 @@
   # This section is for tests that fail in both V8 and JSC.  Thus they
   # have been determined to be incompatible between Mozilla and V8/JSC.
 
+  # Any local 'arguments' variable should not be allowed to shadow the value
+  # returned via the indirect 'arguments' property accessor.
+  'js1_4/Functions/function-001': [FAIL_OK],
+
   # toPrecision argument restricted to range 1..21 in JSC/V8 and ECMA-262
   'js1_5/Regress/regress-452346': [FAIL_OK],