Fix the script analyzer/tool/generate_files

pkg/analyzer/lib/src/summary/format.dart

Index: pkg/analyzer/lib/src/summary/format.dart
diff --git a/pkg/analyzer/lib/src/summary/format.dart b/pkg/analyzer/lib/src/summary/format.dart
index 52b6774ebd93fe176965f9984f4fa1d45c159bf3..4b61a7cd332c24594d7f0da3b1abde071b9245e0 100644
--- a/pkg/analyzer/lib/src/summary/format.dart
+++ b/pkg/analyzer/lib/src/summary/format.dart
@@ -9,8 +9,8 @@ library analyzer.src.summary.format;
 
 import 'dart:convert' as convert;
 
-import 'package:front_end/src/base/api_signature.dart' as api_sig;
-import 'package:front_end/src/base/flat_buffers.dart' as fb;
+import 'package:analyzer/src/summary/api_signature.dart' as api_sig;
+import 'package:analyzer/src/summary/flat_buffers.dart' as fb;
 
 import 'idl.dart' as idl;