Update the Angular/DI tests to latest from github.

third_party/pkg/angular/lib/tools/selector.dart

 library selector;
 
 import 'package:html5lib/dom.dart';
 
 class ContainsSelector {
   String selector;
   RegExp regexp;
 
   ContainsSelector(this.selector, regexp) {
     this.regexp = new RegExp(regexp);
@@ skipping 93 matching lines @@
         String matchingKey = _matchingKey(node.attributes.keys, part.attrName);
         if (matchingKey == null || part.attrValue == '' ?
               node.attributes[matchingKey] == null :
               node.attributes[matchingKey] != part.attrValue) {
           stillGood = false;
         }
       }
     });
 
     return stillGood;
-  } else {
-    throw new ArgumentError('Unsupported Selector: $selector');
-  }
-
-  switch(node.nodeType) {
-    case 1: // Element
-      break;
-    case 3: // Text Node
-      break;
-  }
-  return false;
+  } 
+    
+  throw new ArgumentError('Unsupported Selector: $selector');
 }
 
 String _matchingKey(Iterable keys, String attrName) =>
     keys.firstWhere(
         (key) => new RegExp('^${attrName.replaceAll('*', r'[\w\-]+')}\$').hasMatch(key.toString()),
         orElse: () => null);