Add CompilationUnit indexer implementation.

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 0ba933e18bfd6300d7bab57b9a0c6e796a6703d1..a2c48843aa1e4a903ca1cfd2bb9786ef049e8b8a 100644
--- a/pkg/analyzer/test/src/dart/analysis/test_all.dart
+++ b/pkg/analyzer/test/src/dart/analysis/test_all.dart
@@ -9,6 +9,7 @@ import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'byte_store_test.dart' as byte_store;
 import 'driver_test.dart' as driver;
 import 'file_state_test.dart' as file_state;
+import 'index_test.dart' as index;
 import 'referenced_names_test.dart' as referenced_names;
 
 /// Utility for manually running all tests.
@@ -17,6 +18,7 @@ main() {
     byte_store.main();
     driver.main();
     file_state.main();
+    index.main();
     referenced_names.main();
   }, name: 'analysis');
 }