add test for forward declared shadow case
add test for forward declared shadow case

ghewgill/neon-lang,ghewgill/neon-lang,ghewgill/neon-lang,ghewgill/neon-lang,gitlarryf/neon-lang,gitlarryf/neon-lang,gitlarryf/neon-lang,gitlarryf/neon-lang,ghewgill/neon-lang,gitlarryf/neon-lang,gitlarryf/neon-lang,ghewgill/neon-lang,gitlarryf/neon-lang,gitlarryf/neon-lang,ghewgill/neon-lang,ghewgill/neon-lang,ghewgill/neon-lang,gitlarryf/neon-lang,gitlarryf/neon-lang,ghewgill/neon-lang