Implement set trap for proxies, and revamp class hierarchy in preparation

test/mjsunit/typeof.js

Index: test/mjsunit/typeof.js
diff --git a/test/mjsunit/typeof.js b/test/mjsunit/typeof.js
index 39dec72962a4265030aa97bf050dd943143f4508..947a8473537f8229e579f392072a1acff7e64331 100644
--- a/test/mjsunit/typeof.js
+++ b/test/mjsunit/typeof.js
@@ -25,14 +25,14 @@
 // (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 type of a regular expression should be 'object', 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');
 
 function test(x, y) { return x == y; }
-assertFalse(test('object', typeof r));
+assertTrue(test('object', typeof r));
 
-assertFalse(typeof r == 'object');
+assertTrue(typeof r == 'object');