move CommandLineParser into analyzer for reuse by DDC

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

Index: pkg/analyzer/test/src/command_line/test_all.dart
diff --git a/pkg/analyzer/test/src/command_line/test_all.dart b/pkg/analyzer/test/src/command_line/test_all.dart
index c3239f9c3730373fbc5e06486c49a3052c927666..498951b62e09d84baf7da5a65be1553003495674 100644
--- a/pkg/analyzer/test/src/command_line/test_all.dart
+++ b/pkg/analyzer/test/src/command_line/test_all.dart
@@ -6,10 +6,12 @@ library analyzer.test.src.command_line.test_all;
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
+import 'command_line_parser_test.dart' as command_line_parser_test;
 import 'arguments_test.dart' as arguments_test;
 
 main() {
   defineReflectiveSuite(() {
+    command_line_parser_test.main();
     arguments_test.main();
   }, name: 'command_line');
 }