Change to use Pathos

pkg/docgen/bin/docgen.dart

Index: pkg/docgen/bin/docgen.dart
diff --git a/pkg/docgen/bin/docgen.dart b/pkg/docgen/bin/docgen.dart
index 862e4051a528f36500a289ffb49ec7297442dbc3..7a20f44fa56d951d6b2273f3170704138ef12f83 100644
--- a/pkg/docgen/bin/docgen.dart
+++ b/pkg/docgen/bin/docgen.dart
@@ -8,8 +8,6 @@ import 'package:args/args.dart';
 import 'package:logging/logging.dart';
 
 import '../lib/docgen.dart';
-import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors.dart';
-import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors_util.dart';
 
 /**
  * Analyzes Dart files and generates a representation of included libraries, 
@@ -19,7 +17,7 @@ void main() {
   logger.onRecord.listen((record) => print(record.message));
   var results = initArgParser().parse(new Options().arguments);
   if (results["help"]) return;  
-  new Docgen(results).analyze(listLibraries(results.rest));
+  new Docgen(results);
 }
 
 /**