include output unit in constant info

R=sigmund@google.com

Review URL: https://codereview.chromium.org//2320773002 .
diff --git a/lib/json_info_codec.dart b/lib/json_info_codec.dart
index 5a79a27..8b59aa2 100644
--- a/lib/json_info_codec.dart
+++ b/lib/json_info_codec.dart
@@ -131,7 +131,8 @@
     ConstantInfo result = parseId(json['id']);
     return result
       ..code = json['code']
-      ..size = json['size'];
+      ..size = json['size']
+      ..outputUnit = parseId(json['outputUnit']);
   }
 
   TypedefInfo parseTypedef(Map json) {
@@ -260,6 +261,7 @@
       map[info.serializedId] =
           info.uses.map((u) => _visitDependencyInfo(u)).toList();
     }
+
     allInfo.functions.forEach(helper);
     allInfo.fields.forEach(helper);
     return map;
diff --git a/pubspec.yaml b/pubspec.yaml
index 5fb01d5..98ef967 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: dart2js_info
-version: 0.2.7+1
+version: 0.2.7+2
 description: >
   Libraries and tools to process data produced when running dart2js with
   --dump-info.