Revert svn r4269 and r4298.

test/mjsunit/regexp.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 370 matching lines @@
 for (var i = 0; i < 100000; i++) {
   long = "a?" + long;
 }
 // Don't crash on this one, but maybe throw an exception.
 try {
   RegExp(long).exec("a");
 } catch (e) {
   assertTrue(String(e).indexOf("Stack overflow") >= 0, "overflow");
 }
 
-
-// Test that compile works on modified objects
-var re = /re+/;
-assertEquals("re+", re.source);
-assertFalse(re.global);
-assertFalse(re.ignoreCase);
-assertFalse(re.multiline);
-assertEquals(0, re.lastIndex);
-
-re.compile("ro+", "gim");
-assertEquals("ro+", re.source);
-assertTrue(re.global);
-assertTrue(re.ignoreCase);
-assertTrue(re.multiline);
-assertEquals(0, re.lastIndex);
-
-re.lastIndex = 42;
-re.someOtherProperty = 42;
-re.someDeletableProperty = 42;
-re[37] = 37;  
-re[42] = 42;  
-
-re.compile("ra+", "i");
-assertEquals("ra+", re.source);
-assertFalse(re.global);
-assertTrue(re.ignoreCase);
-assertFalse(re.multiline);
-assertEquals(0, re.lastIndex);
-
-assertEquals(42, re.someOtherProperty);
-assertEquals(42, re.someDeletableProperty);
-assertEquals(37, re[37]);
-assertEquals(42, re[42]);
-
-re.lastIndex = -1;
-re.someOtherProperty = 37;
-re[42] = 37;
-assertTrue(delete re[37]);
-assertTrue(delete re.someDeletableProperty);
-re.compile("ri+", "gm");
-
-assertEquals("ri+", re.source);
-assertTrue(re.global);
-assertFalse(re.ignoreCase);
-assertTrue(re.multiline);
-assertEquals(0, re.lastIndex);
-assertEquals(37, re.someOtherProperty);
-assertEquals(37, re[42]);