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

test/mjsunit/regress/regress-385565.js

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-// Flags: --allow-natives-syntax
+// Flags: --allow-natives-syntax --crankshaft --no-always-opt
 
 var calls = 0;
 
 function callsFReceiver(o) {
     return [].f.call(new Number(o.m), 1, 2, 3);
 }
 
 // For the HConstant
 Array.prototype.f = function() {
     calls++;
@@ skipping 22 matching lines @@
 %OptimizeFunctionOnNextCall(callsFReceiver);
 r2 = callsFReceiver(o1);
 callsFReceiver(o2);
 r3 = callsFReceiver(o1);
 
 assertEquals(1, r1);
 assertTrue(r1 === r2);
 assertTrue(r2 === r3);
 
 assertEquals(10, calls);