Add more test cases for REPL's evaluation.
Add more test cases for REPL's evaluation.

Maxwell-Alexius/goby,goby-lang/goby,goby-lang/goby,hachi8833/goby,hachi8833/goby,st0012/Rooby,st0012/Rooby,Maxwell-Alexius/goby,goby-lang/goby,hachi8833/goby,Maxwell-Alexius/goby