fix do wrap bugs

tests/oop.ar

@@ -1,4 +1,4 @@
-let toyTank(colour , name) = do
+let toyTank(colour, name) = do
     let class = {}
     class.getColour() = do
         term.log("My colour is", colour)

tests/stack test.ar

@@ -4,4 +4,14 @@ do
   let x = 20
   term.log(x)
 
+term.log(x)
+
+term.log()
+
+let x = 10
+
+do
+  x = 20
+  term.log(x)
+
 term.log(x)