JavaScript stubs have access to their calling convention and minor key now.

test/mjsunit/compiler/stubs/floor-stub.js

Index: test/mjsunit/compiler/stubs/floor-stub.js
diff --git a/test/mjsunit/compiler/stubs/floor-stub.js b/test/mjsunit/compiler/stubs/floor-stub.js
index 98932208f36af98dc72d28de0c69aa7d712d35c1..e3fc9b6003f6c1f8b59f565fe1a5b74f9f2c4d2a 100644
--- a/test/mjsunit/compiler/stubs/floor-stub.js
+++ b/test/mjsunit/compiler/stubs/floor-stub.js
@@ -36,16 +36,17 @@ const kFirstSlotExtraTypeFeedbackIndex = 5;
   }
   // Execute the function once to make sure it has a type feedback vector.
   floorFunc(5);
+  var stub = builtins.MathFloorStub("MathFloorStub", 0);
   assertTrue(kExtraTypeFeedbackMinusZeroSentinel !==
              %FixedArrayGet(%GetTypeFeedbackVector(floorFunc),
                             kFirstSlotExtraTypeFeedbackIndex));
-  assertEquals(5.0, builtins.MathFloor_STUB(floorFunc, 4, 5.5));
+  assertEquals(5.0, stub(floorFunc, 4, 5.5));
   assertTrue(kExtraTypeFeedbackMinusZeroSentinel !==
              %FixedArrayGet(%GetTypeFeedbackVector(floorFunc),
                             kFirstSlotExtraTypeFeedbackIndex));
   // Executing floor such that it returns -0 should set the proper sentinel in
   // the feedback vector.
-  assertEquals(-Infinity, 1/builtins.MathFloor_STUB(floorFunc, 4, -0));
+  assertEquals(-Infinity, 1/stub(floorFunc, 4, -0));
   assertEquals(kExtraTypeFeedbackMinusZeroSentinel,
                %FixedArrayGet(%GetTypeFeedbackVector(floorFunc),
                               kFirstSlotExtraTypeFeedbackIndex));