Include more information when deserializing ProgramInfo

bin/deferred_library_size.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /// This tool gives a breakdown of code size by deferred part in the program.
 library dart2js_info.bin.deferred_library_size;
 
 import 'dart:math';
 
 import 'package:dart2js_info/info.dart';
@@ skipping 17 matching lines @@
   }
 }
 
 void printSizes(Map<String, int> sizeByImport, int programSize) {
   var importSizes = <ImportSize>[];
   sizeByImport.forEach((import, size) {
     importSizes.add(new ImportSize(import, size));
   });
   // Sort by size, largest first.
   importSizes.sort((a, b) => b.size - a.size);
-  var longest = importSizes.fold('Percent of code deferred'.length,
+  int longest = importSizes.fold('Percent of code deferred'.length,
       (longest, importSize) => max(longest, importSize.import.length));
 
   _printRow(label, data, {int width: 15}) {
     print('${label.toString().padRight(longest + 1)}'
         '${data.toString().padLeft(width)}');
   }
 
   print('');
   print('Size by library');
   print('-' * (longest + 16));
@@ skipping 18 matching lines @@
       sizeByImport['main'] = outputUnit.size;
     } else {
       for (var import in outputUnit.imports) {
         sizeByImport.putIfAbsent(import, () => 0);
         sizeByImport[import] += outputUnit.size;
       }
     }
   }
   return sizeByImport;
 }