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

test/mjsunit/compiler/opt-next-call-turbo.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --allow-natives-syntax --turbo-filter=*
+// Flags: --allow-natives-syntax --crankshaft --turbo-filter=*
 
 function foo() {
   with ({ value:"fooed" }) { return value; }
 }
 
 %OptimizeFunctionOnNextCall(foo);
 assertEquals("fooed", foo());
 assertOptimized(foo);
 
 function bar() {
   with ({ value:"bared" }) { return value; }
 }
 
 assertEquals("bared", bar());
 %OptimizeFunctionOnNextCall(bar);
 assertEquals("bared", bar());
 assertOptimized(bar);