Revert "Make window.{undefined,NaN,Infinity} read-only"

test/sputnik/sputnik.status

 # Copyright 2009 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 160 matching lines @@
 S15.5.4.7_A1_T3: FAIL_OK
 S15.5.4.8_A1_T3: FAIL_OK
 S15.5.4.9_A1_T3: FAIL_OK
 S15.5.4.10_A1_T3: FAIL_OK
 S15.5.4.11_A1_T3: FAIL_OK
 S15.5.4.12_A1_T3: FAIL_OK
 S15.5.4.13_A1_T3: FAIL_OK
 S15.5.4.14_A1_T3: FAIL_OK
 S15.5.4.15_A1_T3: FAIL_OK
 
-# NaN, Infinity and undefined are read-only according to ES5.
-S15.1.1.1_A2_T1: FAIL_OK  # NaN
-S15.1.1.1_A2_T2: FAIL_OK  # NaN
-S15.1.1.2_A2_T1: FAIL_OK  # Infinity
-# S15.1.1.2_A2_T2 would fail if it weren't bogus in r97. sputnik bug #45.
-S15.1.1.3_A2_T1: FAIL_OK  # undefined
-S15.1.1.3_A2_T2: FAIL_OK  # undefined
-S8.1_A3: FAIL_OK  # undefined (comment is correct, test itself is bogus/ES3)
-S8.5_A4: FAIL_OK  # NaN
-S8.5_A10: FAIL_OK  # Infinity
-
 ##################### SKIPPED TESTS #####################
 
 # These tests take a looong time to run in debug mode.
 S15.1.3.2_A2.5_T1: PASS, SKIP if $mode == debug
 S15.1.3.1_A2.5_T1: PASS, SKIP if $mode == debug
 
 # V8 Bug: http://code.google.com/p/v8/issues/detail?id=1196
 S8.7_A5_T2: FAIL
 
 # Invalid test case (recent change adding var changes semantics)
@@ skipping 63 matching lines @@
 S15.1.3.2_A2.5_T1: SKIP
 S15.1.3.3_A2.3_T1: SKIP
 S15.1.3.4_A2.3_T1: SKIP
 S15.1.3.1_A2.5_T1: SKIP
 S15.1.3.2_A2.5_T1: SKIP
 
 [ $arch == mips ]
 
 # Skip all tests on MIPS.
 *: SKIP