Remove some busy-OSR loops from tests using %OptimizeOsr().

test/mjsunit/count-based-osr.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 13 matching lines @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (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 that OSR works properly when using count-based interrupting/profiling.
 
 function osr_this() {
   var a = 1;
-  // Trigger OSR. First check if optimization is disabled.
-  if (%GetOptimizationStatus(osr_this) == 4) return 1;
-  while (%GetOptimizationCount(osr_this) == 0) {}
+  while (%GetOptimizationCount(osr_this) == 2) ;
   return a;
 }
 assertEquals(1, osr_this());
+assertEquals(1, osr_this());