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michael@0:     w = newGlobal('');
michael@0:   }
michael@0:   return function(f, code) {
michael@0:     try {
michael@0:       evalcx(code, w)
michael@0:     } catch (e) {}
michael@0:   }
michael@0: }
michael@0: 
michael@0: function f(code) {
michael@0:   h(Function(code), code);
michael@0: }
michael@0: h = g()
michael@0: f("\
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michael@0:     y = new Set;\
michael@0:     z = [];\
michael@0:     Object.defineProperty(x, 5, {\
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michael@0:     });\
michael@0:     Object.defineProperty(z, 3, {});\
michael@0:     z[9] = 1;\
michael@0:     x.shift();\
michael@0: ");
michael@0: f("\
michael@0:     z.every(function() {\
michael@0:         x.filter(function(j) {\
michael@0:             if (j) {} else {\
michael@0:                 y.add()\
michael@0:             }\
michael@0:         });\
michael@0:         return 2\
michael@0:     })\
michael@0: ");