Introduce runtime function %OptimizeFunctionOnNextCall to manually trigger optimization.

test/mjsunit/compiler/inline-two.js

 // Copyright 2010 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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 //       notice, this list of conditions and the following disclaimer.
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 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// Flags: --allow-natives-syntax
+
 // Test that we can inline a function that calls another function.
 function TestInlineX(o) {
   // Effect context.
   o.g();
   // Value context.
   var x = o.g();
   assertEquals(42, x);
   assertEquals(42, o.g());
   // Test context.
   if (!o.g()) {
     assertTrue(false);  // Should not happen.
   }
 }
 
 var o2 = {};
 o2.size = function() { return 42; }
 o2.g = function() { return this.size(); };
-for (var i = 0; i < 10000; i++) TestInlineX(o2);
+for (var i = 0; i < 5; i++) TestInlineX(o2);
+%OptimizeFunctionOnNextCall(TestInlineX);
+TestInlineX(o2);
 TestInlineX({g: o2.g, size:o2.size});
 
 
 // Test that we can inline a call on a non-variable receiver.
 function TestInlineX2(o) {
   // Effect context.
   o.h();
   // Value context.
   var x = o.h();
   assertEquals(42, x);
   assertEquals(42, o.h());
   // Test context.
   if (!o.h()) {
     assertTrue(false);  // Should not happen.
   }
 }
 
 var obj = {}
 obj.foo = function() { return 42; }
 var o3 = {};
 o3.v = obj;
 o3.h = function() { return this.v.foo(); };
-for (var i = 0; i < 10000; i++) TestInlineX2(o3);
+for (var i = 0; i < 5; i++) TestInlineX2(o3);
+%OptimizeFunctionOnNextCall(TestInlineX2);
+TestInlineX2(o3);
 TestInlineX2({h: o3.h, v:obj});
 
 
 // Test that we can inline a call on a non-variable receiver.
 function TestInlineFG(o) {
   // Effect context.
   o.h();
   // Value context.
   var x = o.h();
   assertEquals(42, x);
   assertEquals(42, o.h());
   // Test context.
   if (!o.h()) {
     assertTrue(false);  // Should not happen.
   }
 }
 
 var obj = {}
 obj.g = function() { return 42; }
 var o3 = {};
 o3.v = obj;
 o3.f = function() { return this.v; }
 o3.h = function() { return this.f().g(); };
-for (var i = 0; i < 10000; i++) TestInlineFG(o3);
+for (var i = 0; i < 5; i++) TestInlineFG(o3);
+%OptimizeFunctionOnNextCall(TestInlineFG);
+TestInlineFG(o3);
 TestInlineFG({h: o3.h, f: o3.f, v:obj});