Fix function signature in runtime library.
Fix function signature in runtime library.

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