Limit old space size in test which require a large new space.

test/mjsunit/math-abs.js

Index: test/mjsunit/math-abs.js
diff --git a/test/mjsunit/math-abs.js b/test/mjsunit/math-abs.js
index d6ee3f2da7853f071559cbb32911dcde3a81f506..b0647c1efec6b66a5139ef69ed2268503dc6a103 100644
--- a/test/mjsunit/math-abs.js
+++ b/test/mjsunit/math-abs.js
@@ -25,7 +25,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --max-new-space-size=256 --allow-natives-syntax
+// Flags: --max-old-space-size=256 --max-new-space-size=256
+// Flags: --allow-natives-syntax
 
 function zero() {
   var x = 0.5;