[turbofan] Enable all escape analysis tests.

test/mjsunit/compiler/escape-analysis-6.js

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 // Flags: --allow-natives-syntax --experimental-turbo-escape
-//
 
 function f(a) {
   "use strict";
   return arguments;
 }
 
 function g() {
   "use strict";
   var x = f(1,2,3);
   while (x.length < 4) {
       x = f(4,5,6,7,8);
   }
   return x.length;
 }
 
 assertEquals(5, g());
 assertEquals(5, g());
 %OptimizeFunctionOnNextCall(g);
 assertEquals(5, g());