test/script/basic/es6/let-tdz.js.EXPECTED - platform/external/jetbrains/jdk8u_nashorn - Git at Google

 test 1
 ReferenceError: "a" is not defined
 1
 test 2
 ReferenceError: "a" is not defined
 2
 test 3
 ReferenceError: "a" is not defined
 3
 test 4
 undefined
 4
	test 1
	ReferenceError: "a" is not defined
	1
	test 2
	ReferenceError: "a" is not defined
	2
	test 3
	ReferenceError: "a" is not defined
	3
	test 4
	undefined
	4