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

test/mjsunit/regress/regress-410912.js

 // Copyright 2014 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 --expose-gc
+// Flags: --allow-natives-syntax --expose-gc --crankshaft --no-always-opt
 
 var assertDoesNotThrow;
 var assertInstanceof;
 var assertUnreachable;
 var assertOptimized;
 var assertUnoptimized;
 function classOf(object) { var string = Object.prototype.toString.call(object); return string.substring(8, string.length - 1); }
 function PrettyPrint(value) { return ""; }
 function PrettyPrintArrayElement(value, index, array) { return ""; }
 function fail(expectedText, found, name_opt) { }
@@ skipping 181 matching lines @@
   __f_12(__v_19.external_uint16,  new Uint16Array(__v_13));
   __f_12(__v_19.external_int32,   new Int32Array(__v_13));
   __f_12(__v_19.external_uint32,  new Uint32Array(__v_13));
   __f_12(__v_19.external_float32, new Float32Array(__v_13));
   __f_12(__v_19.external_float64, new Float64Array(__v_13));
   __f_12(__v_19.external_uint8_clamped, new Uint8ClampedArray(__v_13));
 }
 try {
 __f_18();
 } catch(e) { }