Make RegExp objects not callable.

test/mjsunit/typeof.js

 // Copyright 2008 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 11 matching lines @@
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // The type of a regular expression should be 'function', including in
 // the context of string equality comparisons.
 
 var r = new RegExp;
-assertEquals('function', typeof r);
-assertTrue(typeof r == 'function');
+assertEquals('object', typeof r);
+assertTrue(typeof r == 'object');
+assertFalse(typeof r == 'function');
 
 function test(x, y) { return x == y; }
-assertFalse(test('object', typeof r));
+assertTrue(test('object', typeof r));
 
-assertFalse(typeof r == 'object');