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load(libdir + "asserts.js");
m={}
Object.defineProperty(m, 'p', {value: 3});
assertThrowsInstanceOf(function() {"use strict"; delete m.p;}, TypeError);
x = new Proxy(m, {})
assertEq(x.p, 3);
assertThrowsInstanceOf(function fun() {"use strict"; return delete x.p; }, TypeError);
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