Introduce runtime function %OptimizeFunctionOnNextCall to manually trigger optimization.

test/mjsunit/compiler/property-calls.js

Index: test/mjsunit/compiler/property-calls.js
diff --git a/test/mjsunit/compiler/property-calls.js b/test/mjsunit/compiler/property-calls.js
index 3366971e8bd386d761706645f28f6b7b9c96c2c7..ad5ca81bfd6b6fe1b3cb83c72e243fe1830d34fa 100644
--- a/test/mjsunit/compiler/property-calls.js
+++ b/test/mjsunit/compiler/property-calls.js
@@ -25,12 +25,16 @@
 // (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
+
 function f(o) { return o.g(); }
 function g() { return 42; }
 
 var object = { };
 object.g = g;
-for (var i = 0; i < 10000000; i++) f(object);
+for (var i = 0; i < 5; i++) f(object);
+%OptimizeFunctionOnNextCall(f);
+f(object);
 assertEquals(42, f(object));
 
 object = { g: function() { return 87; } };