{"ScriptPreparationCode":"let Sym = Symbol(\u0022test\u0022)\r\nclass test {\r\n [Sym]\r\n}\r\nlet obj = new test","TestCases":[{"Name":"Symbol in obj","Code":"for (let i = 300; --i;) Sym in obj","IsDeferred":false},{"Name":"obj instanceof constructor ","Code":"for (let i = 300; --i;) obj instanceof test","IsDeferred":false}]}