Initial re-write of analysis context for the new task model

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

Index: pkg/analyzer/test/src/context/test_all.dart
diff --git a/pkg/analyzer/test/src/context/test_all.dart b/pkg/analyzer/test/src/context/test_all.dart
index 8b733b0c07af4739be6878d02fbd6d3ec979471d..fe1b98cb69b55073fcf4a5be86bcc3057b803f31 100644
--- a/pkg/analyzer/test/src/context/test_all.dart
+++ b/pkg/analyzer/test/src/context/test_all.dart
@@ -7,11 +7,13 @@ library test.src.context.test_all;
 import 'package:unittest/unittest.dart';
 
 import 'cache_test.dart' as cache_test;
+import 'context_test.dart' as context_test;
 
 /// Utility for manually running all tests.
 main() {
   groupSep = ' | ';
   group('task tests', () {
     cache_test.main();
+    context_test.main();
   });
 }