[fasta] Add and correct even more offsets

pkg/front_end/lib/src/fasta/kernel/kernel_enum_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.kernel_enum_builder;
 
 import 'package:kernel/ast.dart'
     show
         Arguments,
         AsyncMarker,
@@ skipping 120 matching lines @@
         null,
         0,
         stringType,
         "toString",
         null,
         null,
         AsyncMarker.Sync,
         ProcedureKind.Method,
         parent,
         charOffset,
+        charOffset,
         charEndOffset);
     members["toString"] = toStringBuilder;
     String className = name;
     for (String name in constants) {
       if (members.containsKey(name)) {
         inputError(null, null, "Duplicated name: $name");
         continue;
       }
       KernelFieldBuilder fieldBuilder = new KernelFieldBuilder(
           null,
@@ skipping 74 matching lines @@
       Arguments arguments =
           new Arguments(<Expression>[new IntLiteral(index++)]);
       field.initializer =
           new ConstructorInvocation(constructor, arguments, isConst: true);
     }
     return super.build(libraryBuilder);
   }
 
   Builder findConstructorOrFactory(String name) => null;
 }