// Access on non-syntactic lexical environment's binding. var g = newGlobal(); g.evaluate(` (function () { const otherDebugger = newGlobal({ sameZoneAs: this }).Debugger; const dbg = otherDebugger(this); const env = dbg.getNewestFrame().callee.environment; var ran = false; try { env.setVariable("tdz_variable", 10); ran = true; } catch (e) { } assertEq(ran, false); })(); // We shouldn't crash when initializing this. let tdz_variable = 10; `, { envChainObject: {}, });