feat(Parser): implement Parser

Add a simple parser implementation that supports only field reads.

modules/facade/src/collection.dart

@@ -39,6 +39,9 @@ class ListWrapper {
   static forEach(list, fn) {
     list.forEach(fn);
   }
+  static reduce(List list, Function fn, init) {
+    return list.fold(init, fn);
+  }
   static first(List list) => list.first;
   static last(List list) => list.last;
   static List reversed(List list) => list.reversed.toList();

modules/facade/src/collection.es6

@@ -60,6 +60,9 @@ export class ListWrapper {
     }
     return null;
   }
+  static reduce(list:List, fn:Function, init) {
+    return list.reduce(fn, init);
+}
   static filter(array, pred:Function) {
     return array.filter(pred);
   }