test/mjsunit/eval-typeof-non-existing.js

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// Typeof expression must resolve to 'undefined' when it used on a
// non-existing property. It is *not* allowed to throw a
// ReferenceError.
assertEquals('undefined', typeof xxx);
assertEquals('undefined', eval('typeof xxx'));

assertThrows('typeof(true ? xxx : yyy)', ReferenceError);
assertThrows('with ({}) { typeof(true ? xxx : yyy) }', ReferenceError);