44 function testWeakClass(classFunc) {  argument
45   assertDoesNotThrow(function(){addProperty(classFunc())});
46   assertDoesNotThrow(function(){addProperty(classFunc().prototype)});
47   assertDoesNotThrow(function(){convertPropertyToData(classFunc())});
48   assertDoesNotThrow(function(){convertPropertyToData(classFunc().prototype)});
51 function testStrongClass(classFunc) {  argument
52   assertThrows(function(){addProperty(classFunc())}, TypeError);
53   assertThrows(function(){addProperty(classFunc().prototype)}, TypeError);
54   assertThrows(function(){convertPropertyToData(classFunc())}, TypeError);
55   assertThrows(function(){convertPropertyToData(classFunc().prototype)},
69   let classFunc = function() {  function
78   testStrongClass(classFunc);
87   let classFunc = function() {  function
97   testWeakClass(classFunc);