repl: enabled back and added automated tests

fixed typos and macos errors

Makefile

@@ -25,6 +25,7 @@ test: v
 	find . -name '*_test.v' -print0 | xargs -0 -n1 ./v
 	echo "Building V examples..."
 	find examples -name '*.v' -print0 | xargs -0 -n1 ./v
+	bash ./compiler/tests/repl/repl.sh
 
 clean:
 	-rm -f v.c v*.c v.c.out v vprod thirdparty/**/*.o