finished the first draft of the parser test

test/fixtures/each.js

@@ -0,0 +1,30 @@
+(function(){
+  _.each = function(obj, iterator, context) {
+    var index = 0;
+    try {
+      if (obj.forEach) {
+        return obj.forEach(iterator, context);
+      }
+      if (_.isArray(obj) || _.isArguments(obj)) {
+        var a = obj;
+        var d = [];
+        for (var b=0, c=a.length; b<c; b++) {
+          var item = a[b];
+          var i = b;
+          d[b] = iterator.call(context, item, i, obj);
+        }
+        return d;
+      }
+      var e = _.keys(obj);
+      for (var f=0, g=e.length; f<g; f++) {
+        var key = e[f];
+        iterator.call(context, obj[key], key, obj);
+      }
+    } catch (e) {
+      if (e !== breaker) {
+        throw e;
+      }
+    }
+    return obj;
+  };
+})();