Roll Observatory packages and add a roll script

packages/smoke/lib/codegen/recorder.dart

 // Copyright (c) 2014, 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.
 
 /// Records accesses to Dart program declarations and generates code that will
 /// allow to do the same accesses at runtime using `package:smoke/static.dart`.
 /// Internally, this library relies on the `analyzer` to extract data from the
 /// program, and then uses [SmokeCodeGenerator] to produce the code needed by
 /// the smoke system.
 ///
@@ skipping 385 matching lines @@
   final NameMatcher matches;
 
   const QueryOptions({this.includeFields: true, this.includeProperties: true,
       this.includeInherited: true, this.includeUpTo: null,
       this.excludeFinal: false, this.includeMethods: false,
       this.withAnnotations: null, this.matches: null});
 }
 
 /// Predicate that tells whether [name] should be included in query results.
 typedef bool NameMatcher(String name);