Remove indirection between entity and types

js/id/connection.js

@@ -77,8 +77,15 @@ iD.Connection = function() {
             delete o.lat;
         }
         o.id = iD.Entity.id.fromOSM(o.type, o.id);
-        if (o.type === 'node') o._poi = !refNodes[o.id];
-        return iD.Entity(o);
+        switch (o.type) {
+            case 'node':
+                o._poi = !refNodes[o.id];
+                return iD.Node(o);
+            case 'way':
+                return iD.Way(o);
+            case 'relation':
+                return iD.Relation(o);
+        }
     }
 
     function parse(dom) {

js/id/graph/entity.js

@@ -26,7 +26,7 @@ iD.Entity.id.toOSM = function (id) {
 // A function suitable for use as the second argument to d3.selection#data().
 iD.Entity.key = function (entity) {
     return entity.id;
-}
+};
 
 iD.Entity.prototype = {
     tags: {},