Add public and export namespaces to LibraryElement.

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

Index: pkg/analyzer/lib/src/generated/element_handle.dart
diff --git a/pkg/analyzer/lib/src/generated/element_handle.dart b/pkg/analyzer/lib/src/generated/element_handle.dart
index b873fad9e30dd8c81c65b15ff34f41bdc09a1a4d..4b68e8e13da244d04643ae6f3bfcc93d040d6fae 100644
--- a/pkg/analyzer/lib/src/generated/element_handle.dart
+++ b/pkg/analyzer/lib/src/generated/element_handle.dart
@@ -12,6 +12,7 @@ import 'element.dart';
 import 'engine.dart';
 import 'java_core.dart';
 import 'java_engine.dart';
+import 'resolver.dart';
 import 'source.dart';
 import 'utilities_dart.dart';
 
@@ -751,6 +752,9 @@ class LibraryElementHandle extends ElementHandle implements LibraryElement {
   List<LibraryElement> get exportedLibraries => actualElement.exportedLibraries;
 
   @override
+  Namespace get exportNamespace => actualElement.exportNamespace;
+
+  @override
   List<ExportElement> get exports => actualElement.exports;
 
   @override
@@ -787,6 +791,9 @@ class LibraryElementHandle extends ElementHandle implements LibraryElement {
   List<PrefixElement> get prefixes => actualElement.prefixes;
 
   @override
+  Namespace get publicNamespace => actualElement.publicNamespace;
+
+  @override
   List<CompilationUnitElement> get units => actualElement.units;
 
   @override