Support for @DartName and @DartOptional annotations.

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

Index: pkg/analyzer/lib/src/generated/index.dart
diff --git a/pkg/analyzer/lib/src/generated/index.dart b/pkg/analyzer/lib/src/generated/index.dart
index f1d791fe8286507e1fca7b9d07e9e90f051febd0..38f7ac960ece341d5732478cb0d44f13954b0993 100644
--- a/pkg/analyzer/lib/src/generated/index.dart
+++ b/pkg/analyzer/lib/src/generated/index.dart
@@ -1267,7 +1267,7 @@ abstract class IndexStore {
 class UniverseElementImpl extends ElementImpl implements UniverseElement {
   static UniverseElementImpl INSTANCE = new UniverseElementImpl();
 
-  UniverseElementImpl() : super.con2("--universe--", -1);
+  UniverseElementImpl() : super("--universe--", -1);
 
   accept(ElementVisitor visitor) => null;
 
@@ -2115,7 +2115,7 @@ class IndexContributor_ImportElementInfo {
  * kind of this name - field, method or something else.
  */
 class NameElementImpl extends ElementImpl {
-  NameElementImpl(String name) : super.con2("name:${name}", -1);
+  NameElementImpl(String name) : super("name:${name}", -1);
 
   accept(ElementVisitor visitor) => null;