Simplify ConfigureHeap and change --max_new_space_size to --max_semi_space_size.

test/mjsunit/regress/regress-1708.js

 // Copyright 2011 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 14 matching lines @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Regression test of a very rare corner case where left-trimming an
 // array caused invalid marking bit patterns on lazily swept pages.
 //
 // Lazy sweeping was deprecated. We are keeping the test case to make
 // sure that concurrent sweeping, which relies on similar assumptions
 // as lazy sweeping works correctly.
 
-// Flags: --expose-gc --noincremental-marking --max-new-space-size=2
+// Flags: --expose-gc --noincremental-marking --max_semi_space_size=1
 
 (function() {
   var head = new Array(1);
   var tail = head;
 
   // Fill heap to increase old-space size and trigger concurrent sweeping on
   // some of the old-space pages.
   for (var i = 0; i < 200; i++) {
     tail[1] = new Array(1000);
     tail = tail[1];
@@ skipping 12 matching lines @@
 
   // At this point "array" should have been trimmed from the left with
   // marking bits being correctly transfered to the new object start.
   // Scavenging operations cause concurrent sweeping to advance and verify
   // that marking bit patterns are still sane.
   for (var i = 0; i < 200; i++) {
     tail[1] = new Array(1000);
     tail = tail[1];
   }
 })();