Move CompletionTarget and OpType for use by plugins

pkg/analysis_server/test/services/completion/test_all.dart

Index: pkg/analysis_server/test/services/completion/test_all.dart
diff --git a/pkg/analysis_server/test/services/completion/test_all.dart b/pkg/analysis_server/test/services/completion/test_all.dart
index 456665697d68e01d6812b47054842159fd2121bd..a59287d8e92b4b8b63ea602e23bdcfa4feff7732 100644
--- a/pkg/analysis_server/test/services/completion/test_all.dart
+++ b/pkg/analysis_server/test/services/completion/test_all.dart
@@ -4,14 +4,12 @@
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import 'completion_target_test.dart' as completion_target_test;
 import 'dart/test_all.dart' as dart_contributor_tests;
 import 'statement/statement_completion_test.dart' as statement_completion_test;
 
 /// Utility for manually running all tests.
 main() {
   defineReflectiveSuite(() {
-    completion_target_test.main();
     dart_contributor_tests.main();
     statement_completion_test.main();
   }, name: 'completion');