Add AnalysisSession to analyzer

pkg/analyzer/test/src/dart/analysis/test_all.dart

Index: pkg/analyzer/test/src/dart/analysis/test_all.dart
diff --git a/pkg/analyzer/test/src/dart/analysis/test_all.dart b/pkg/analyzer/test/src/dart/analysis/test_all.dart
index 47564a8bb560e288b9420f46e7ff647a0a7839bb..8c6fce5b6b86ae78f60069a87500a3f330859cbc 100644
--- a/pkg/analyzer/test/src/dart/analysis/test_all.dart
+++ b/pkg/analyzer/test/src/dart/analysis/test_all.dart
@@ -11,6 +11,7 @@ import 'file_state_test.dart' as file_state;
 import 'index_test.dart' as index;
 import 'referenced_names_test.dart' as referenced_names;
 import 'search_test.dart' as search_test;
+import 'session_test.dart' as session_test;
 
 /// Utility for manually running all tests.
 main() {
@@ -20,5 +21,6 @@ main() {
     index.main();
     referenced_names.main();
     search_test.main();
+    session_test.main();
   }, name: 'analysis');
 }