Reduce strong mode errors and warnings

pkg/front_end/lib/src/fasta/dill/dill_member_builder.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.
 
 library fasta.dill_member_builder;
 
 import 'package:kernel/ast.dart' show
     Constructor,
     Field,
     Member,
@@ skipping 20 matching lines @@
   final Member member;
 
   final Builder parent;
 
   DillMemberBuilder(Member member, this.parent)
       : modifiers = computeModifiers(member),
         member = member;
 
   Member get target => member;
 
+  String get name => member.name.name;
+
   bool get isConstructor => member is Constructor;
 
   bool get isFactory {
     if (member is Procedure) {
       Procedure procedure = member;
       return procedure.kind == ProcedureKind.Factory;
     } else {
       return false;
     }
   }
 }
 
 int computeModifiers(Member member) {
   int modifier = member.isAbstract ? abstractMask : 0;
   modifier |= member.isExternal ? externalMask : 0;
   if (member is Field) {
     modifier |= member.isConst ? constMask : 0;
     modifier |= member.isFinal ? finalMask : 0;
     modifier |= member.isStatic ? staticMask : 0;
   } else if (member is Procedure) {
     modifier |= member.isConst ? constMask : 0;
     modifier |= member.isStatic ? staticMask : 0;
   } else if (member is Constructor) {
     modifier |= member.isConst ? constMask : 0;
   } else {
     internalError("Unhandled: ${member.runtimeType}");
   }
   return modifier;
 }