Add more (incomplete) diagnostic support to the status pages

pkg/analyzer/lib/src/generated/source.dart

Index: pkg/analyzer/lib/src/generated/source.dart
diff --git a/pkg/analyzer/lib/src/generated/source.dart b/pkg/analyzer/lib/src/generated/source.dart
index 79cd48f37bcc63620413f00a8c0a2e4ae3ded7ae..8dd68d86b896495affb2539161cec62e5f983d89 100644
--- a/pkg/analyzer/lib/src/generated/source.dart
+++ b/pkg/analyzer/lib/src/generated/source.dart
@@ -668,6 +668,17 @@ class SourceFactory {
   }
 
   /**
+   * Return a source factory that will resolve URI's in the same way that this
+   * source factory does.
+   */
+  SourceFactory clone() {
+    SourceFactory factory =
+        new SourceFactory(_resolvers, _packages, _resourceProvider);
+    factory.localSourcePredicate = _localSourcePredicate;
+    return factory;
+  }
+
+  /**
    * Return a source object representing the given absolute URI, or `null` if the URI is not a
    * valid URI or if it is not an absolute URI.
    *