Introduce runtime function %OptimizeFunctionOnNextCall to manually trigger optimization.

test/mjsunit/compiler/regress-max.js

Index: test/mjsunit/compiler/regress-max.js
diff --git a/test/mjsunit/compiler/regress-max.js b/test/mjsunit/compiler/regress-max.js
index 94c543a6a51dd88d9a1c33b688293b75b4ac9d5d..8dd4451226af6a79b11e482e9bd2175d646a985b 100644
--- a/test/mjsunit/compiler/regress-max.js
+++ b/test/mjsunit/compiler/regress-max.js
@@ -25,10 +25,15 @@
 // (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 Math.max with negative zero as input.
 function f(x, y) { return Math.max(x, y) }
 
-for (var i = 0; i < 1000000; i++) f(0, 0);
+for (var i = 0; i < 5; i++) f(0, 0);
+%OptimizeFunctionOnNextCall(Math.max);
+%OptimizeFunctionOnNextCall(f);
+f(0, 0);
 
 var r = f(-0, -0);
 assertEquals(-Infinity, 1 / r);