Altered bound functions with do to just use call(this) rather than binding.

lib/grammar.js

@@ -108,7 +108,7 @@
     ],
     Do: [
       o("DO Code", function() {
-        return new Call($2, $2.params);
+        return $2["do"]();
       })
     ],
     Code: [

lib/nodes.js

@@ -1048,6 +1048,14 @@
     Code.prototype.traverseChildren = function(crossScope, func) {
       return crossScope ? Code.__super__.traverseChildren.call(this, crossScope, func) : undefined;
     };
+    Code.prototype["do"] = function() {
+      if (this.bound) {
+        this.bound = false;
+        return new Call(new Value(this, [new Accessor(new Literal('call'))]), [new Literal('this')].concat(this.params));
+      } else {
+        return new Call(this, this.params);
+      }
+    };
     return Code;
   })();
   exports.Param = (function() {