Fix compilation of JS ArrayBuffer when generating documentation

src/lime/utils/ArrayBuffer.hx

@@ -9,7 +9,7 @@ package lime.utils;
     import haxe.io.Bytes;
 
     @:forward
-    abstract ArrayBuffer(Bytes) from Bytes to Bytes {
+    abstract ArrayBuffer(Bytes) from Bytes to Bytes #if doc_gen from Dynamic to Dynamic #end {
         public inline function new( byteLength:Int ) {
             this = Bytes.alloc( byteLength );
         }