Fix mozilla test failures and expectations.

test/mozilla/mozilla.status

 # Copyright 2011 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 227 matching lines @@
 
 # Runs out of memory because it compiles huge functions.
 js1_5/Function/regress-338001: FAIL_OK
 js1_5/Function/regress-338121-01: FAIL_OK
 js1_5/Function/regress-338121-02: FAIL_OK
 js1_5/Function/regress-338121-03: FAIL_OK
 
 # Expectes 'prototype' property of functions to be enumerable.
 js1_5/Function/10.1.6-01: FAIL_OK
 
-# toPrecision argument restricted to range 1..21 in JSC/V8
-js1_5/Regress/regress-452346: FAIL_OK
-ecma_3/Number/15.7.4.7-1: FAIL_OK
-
-# toExponential argument restricted to range 0..20 in JSC/V8
-ecma_3/Number/15.7.4.6-1: FAIL_OK
-
 #:=== RegExp:===
 # We don't match the syntax error message of Mozilla for invalid
 # RegExp flags.
 ecma_3/RegExp/15.10.4.1-6: FAIL_OK
 
 # PCRE doesn't allow subpattern nesting deeper than 200, this tests
 # depth 500.  JSC detects the case, and return null from the match,
 # and passes this test (the test doesn't check for a correct return
 # value).
 ecma_3/RegExp/regress-119909: PASS || FAIL_OK
@@ skipping 599 matching lines @@
 ecma/Date/15.9.5.12-2: SKIP
 js1_5/Array/regress-99120-02: SKIP
 js1_5/extensions/regress-371636: SKIP
 js1_5/Regress/regress-203278-1: SKIP
 js1_5/Regress/regress-404755:  SKIP
 js1_5/Regress/regress-451322: SKIP
 
 
 # BUG(1040): Allow this test to timeout.
 js1_5/GC/regress-203278-2: PASS || TIMEOUT