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

test/mjsunit/regress/regress-99167.js

Index: test/mjsunit/regress/regress-99167.js
diff --git a/test/mjsunit/regress/regress-99167.js b/test/mjsunit/regress/regress-99167.js
index 777acf4487e0e0da689d417786c9b7785961238e..15bbc72e418e10448816c25956325a00b13b9408 100644
--- a/test/mjsunit/regress/regress-99167.js
+++ b/test/mjsunit/regress/regress-99167.js
@@ -25,7 +25,7 @@
 // (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: --expose-gc --max-new-space-size=2
+// Flags: --expose-gc --max_semi_space_size=1
 
 eval("function Node() { this.a = 1; this.a = 3; }");
 new Node;