Since ES2018 iterator's next method is called once during the prologue of iteration,
rather than during each step. The test is incorrect and stuck in an infinite loop.
https://github.com/tc39/test262/pull/1248 fixed the test and it passes on test262-esnext.
Removing test/language/statements/for-of/iterator-next-reference.js from test262-es2015
is necessary, because it won't pass ever and only slow down testing.
JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác [email protected]