Replace long running loops by OptimizeFunctionOnNextCall in some tests.

test/mjsunit/compiler/regress-intoverflow.js

Index: test/mjsunit/compiler/regress-intoverflow.js
diff --git a/test/mjsunit/compiler/regress-intoverflow.js b/test/mjsunit/compiler/regress-intoverflow.js
index d3842f1c23fb787b3f3d921b46cfab233115d6f2..063a376148d4416a1e8bdf52861129e9114a8b32 100644
--- a/test/mjsunit/compiler/regress-intoverflow.js
+++ b/test/mjsunit/compiler/regress-intoverflow.js
@@ -25,6 +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: --allow-natives-syntax
+
 // Test overflow checks in optimized code.
 function testMul(a, b) {
   a *= 2;
@@ -34,7 +36,8 @@ function testMul(a, b) {
   }
 }
 
-for (var i=0; i<1000000; i++) testMul(0,0);
+for (var i=0; i<5; i++) testMul(0,0);
+%OptimizeFunctionOnNextCall(testMul);
 assertEquals(4611686018427388000, testMul(-0x40000000, -0x40000000));
 
 function testAdd(a, b) {
@@ -45,7 +48,8 @@ function testAdd(a, b) {
   }
 }
 
-for (var i=0; i<1000000; i++) testAdd(0,0);
+for (var i=0; i<5; i++) testAdd(0,0);
+%OptimizeFunctionOnNextCall(testAdd);
 assertEquals(-4294967296, testAdd(-0x40000000, -0x40000000));
 
 
@@ -58,5 +62,6 @@ function testSub(a, b) {
   }
 }
 
-for (var i=0; i<1000000; i++) testSub(0,0);
+for (var i=0; i<5; i++) testSub(0,0);
+%OptimizeFunctionOnNextCall(testSub);
 assertEquals(-2147483650, testSub(-0x40000000, 1));