small refactor and cleanup

tests/loops_and_cmp.sl

@@ -0,0 +1,13 @@
+import ../stdlib/stdlib.sl
+import ../stdlib/io.sl
+
+: main
+    0
+    5 for
+        1 +
+    end
+    puti cr
+    5 5 == puti cr
+    5 4 == puti cr
+    0
+;