Start making server strong mode clean

pkg/analysis_server/lib/src/services/completion/dart/label_contributor.dart

 // Copyright (c) 2015, 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.
 
 library services.completion.contributor.dart.label;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart' as protocol
     show Element, ElementKind;
@@ skipping 173 matching lines @@
    */
   final bool includeStatementLabels;
 
   /**
    * True if case labels should be included as suggestions.
    */
   final bool includeCaseLabels;
 
   _LabelVisitor(DartCompletionRequest request, this.includeStatementLabels,
       this.includeCaseLabels, this.suggestions)
-      : super(request.offset),
-        request = request;
+      : request = request,
+        super(request.offset);
 
   @override
   void declaredClass(ClassDeclaration declaration) {
     // ignored
   }
 
   @override
   void declaredClassTypeAlias(ClassTypeAlias declaration) {
     // ignored
   }
@@ skipping 72 matching lines @@
             0,
             false,
             false);
         suggestions.add(suggestion);
         return suggestion;
       }
     }
     return null;
   }
 }