adds tests

tests/ic/tconverter.nim

@@ -11,7 +11,6 @@ converter toMeters(f: Feet): Meters =
   Meters(float(f) * 0.3048)
 
 proc showMeters(m: Meters) =
-  doAssert float(m) == 3.048
   echo "ok"
 
 showMeters(Feet(10.0))

tests/ic/tmiscs.nim

@@ -32,4 +32,12 @@ proc consume(x: sink BigObj) =
   echo x.data.len
 
 var b = BigObj(data: @[1, 2, 3, 4, 5])
-consume(move b)
+consume(move b)
+
+proc divmod(a, b: int): (int, int) =
+  (a div b, a mod b)
+
+
+let (q, r) = divmod(17, 5)
+echo q
+echo r