eval_let_6: { input: { eval("let a;"); console.log(); } expect: { eval("let a;"); console.log(); } expect_stdout: "" node_version: ">=6" } eval_let_4: { input: { eval("let a;"); console.log(); } expect: { eval("let a;"); console.log(); } expect_stdout: SyntaxError("Block-scoped declarations (let, const, function, class) not yet supported outside strict mode") node_version: "4" } eval_let_0: { input: { eval("let a;"); console.log(); } expect: { eval("let a;"); console.log(); } expect_stdout: SyntaxError("Unexpected identifier") node_version: "<=0.12" }