[tests] Cleanup tests that use assertOptimized()/assertUnoptimized().

test/mjsunit/es6/block-scoping-sloppy.js

Index: test/mjsunit/es6/block-scoping-sloppy.js
diff --git a/test/mjsunit/es6/block-scoping-sloppy.js b/test/mjsunit/es6/block-scoping-sloppy.js
index f5c5a6326b393f2c0814b41902044ffba1c0b002..29eadb17d14a32154853f1af02497ef897d620c8 100644
--- a/test/mjsunit/es6/block-scoping-sloppy.js
+++ b/test/mjsunit/es6/block-scoping-sloppy.js
@@ -25,7 +25,7 @@
 // (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
+// Flags: --allow-natives-syntax --crankshaft
 // Test functionality of block scopes.
 
 // Hoisting of var declarations.
@@ -40,7 +40,7 @@ function f1() {
 for (var j = 0; j < 5; ++j) f1();
 %OptimizeFunctionOnNextCall(f1);
 f1();
-assertTrue(%GetOptimizationStatus(f1) != 2);
+assertOptimized(f1);
 
 // Dynamic lookup in and through block contexts.
 function f2(one) {