Add a compare stub on ARM.

test/mjsunit/html-comments.js

 --> must work at beginning of file!
 
 // 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
@@ skipping 14 matching lines @@
 // 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.
 
 var x = 1;
 --> this must be ignored...
    --> so must this...
         --> and this.
 x-->0;
-assertEquals(0, x);
+assertEquals(0, x, 'a');
 
 
 var x = 0; x <!-- x
-assertEquals(0, x);
+assertEquals(0, x, 'b');
 
 var x = 1; x <!--x
-assertEquals(1, x);
+assertEquals(1, x, 'c');
 
 var x = 2; x <!-- x; x = 42;
-assertEquals(2, x);
+assertEquals(2, x, 'd');
 
 var x = 1; x <! x--;
-assertEquals(0, x);
+assertEquals(0, x, 'e');
 
 var x = 1; x <!- x--;
-assertEquals(0, x);
+assertEquals(0, x, 'f');
 
 var b = true <! true;
-assertFalse(b);
+assertFalse(b, 'g');
 
 var b = true <!- true;
-assertFalse(b);
+assertFalse(b, 'h');