Make the RegExp.prototype object be a RegExp object.

test/es5conform/es5conform.status

 # Copyright 2009 the V8 project authors. All rights reserved.
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 # modification, are permitted provided that the following conditions are
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 #     * Redistributions of source code must retain the above copyright
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 #       copyright notice, this list of conditions and the following
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@@ skipping 78 matching lines @@
 
 # SUBSETFAIL
 chapter15/15.2/15.2.3/15.2.3.4/15.2.3.4-4-6: FAIL_OK
 
 # SUBSETFAIL
 chapter15/15.2/15.2.3/15.2.3.4/15.2.3.4-4-7: FAIL_OK
 
 # SUBSETFAIL
 chapter15/15.2/15.2.3/15.2.3.4/15.2.3.4-4-11: FAIL_OK
 
-# We do not implement all methods on RegExp.
-chapter15/15.2/15.2.3/15.2.3.4/15.2.3.4-4-13: FAIL
-
 # SUBSETFAIL
 chapter15/15.2/15.2.3/15.2.3.4/15.2.3.4-4-14: FAIL_OK
 
 # EvalError.prototype does not have message property.
 chapter15/15.2/15.2.3/15.2.3.4/15.2.3.4-4-15: FAIL
 
 # Rangeerror.prototype does not have message property.
 chapter15/15.2/15.2.3/15.2.3.4/15.2.3.4-4-16: FAIL
 
 # ReferenceError.prototype does not have message property.
@@ skipping 72 matching lines @@
 
 # Bad test - deleting the property on o in callbackfn will
 # have no effect on the actual array on which reduceRight is called.
 chapter15/15.4/15.4.4/15.4.4.22/15.4.4.22-9-7: FAIL_OK
 
 # We do not correctly recognize \uFEFF as whitespace
 chapter15/15.5/15.5.4/15.5.4.20/15.5.4.20-4-10: FAIL
 chapter15/15.5/15.5.4/15.5.4.20/15.5.4.20-4-18: FAIL
 chapter15/15.5/15.5.4/15.5.4.20/15.5.4.20-4-34: FAIL
 
-# RegExp.prototype is not of type RegExp - we are bug compatible with JSC.
-chapter15/15.10/15.10.6/15.10.6: FAIL_OK
-
-# We do not have the properties of a RegExp instance on RegExp.prototype.
-# The spec says we should - but we are currently bug compatible with JSC.
-chapter15/15.10/15.10.7/15.10.7.1/15.10.7.1-1: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.1/15.10.7.1-2: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.2/15.10.7.2-1: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.2/15.10.7.2-2: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.3/15.10.7.3-1: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.3/15.10.7.3-2: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.4/15.10.7.4-1: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.4/15.10.7.4-2: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.5/15.10.7.5-1: FAIL_OK
-chapter15/15.10/15.10.7/15.10.7.5/15.10.7.5-2: FAIL_OK
-
 ##############################################################################
 # Unimplemented parts of strict mode
 # Setting expectations to fail only so that the tests trigger as soon as
 # the strict mode feature gets implemented
 
 # A directive preceeding an 'use strict' directive may not contain
 # an OctalEscapeSequence
 # Incorrect test - need double escape in eval.
 chapter07/7.8/7.8.4/7.8.4-1-s: FAIL
 
@@ skipping 116 matching lines @@
 chapter15/15.3/15.3.2/15.3.2.1/15.3.2.1-11-6-s: FAIL
 
 # Array.prototype.reduce - null passed as thisValue to strict callbackfn
 # Invalid test case: http://es5conform.codeplex.com/workitem/29085
 chapter15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-c-ii-4-s: FAIL
 
 [ $arch == mips ]
 
 # Skip all tests on MIPS.
 *: SKIP