merge fasta.Token into analyzer.Token

pkg/front_end/lib/src/fasta/kernel/body_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.body_builder;
 
 import '../fasta_codes.dart'
     show FastaMessage, codeExpectedButGot, codeExpectedFunctionBody;
 
 import '../parser/parser.dart' show FormalParameterType, optional;
@@ skipping 25 matching lines @@
 import 'package:kernel/clone.dart' show CloneVisitor;
 
 import 'package:kernel/transformations/flags.dart' show TransformerFlag;
 
 import 'package:kernel/class_hierarchy.dart' show ClassHierarchy;
 
 import 'package:kernel/core_types.dart' show CoreTypes;
 
 import 'frontend_accessors.dart' show buildIsNull, makeBinary, makeLet;
 
+import '../../scanner/token.dart' show Token;
+
 import '../scanner/token.dart'
-    show BeginGroupToken, Token, isBinaryOperator, isMinusOperator;
+    show BeginGroupToken, isBinaryOperator, isMinusOperator;
 
 import '../errors.dart' show formatUnexpected, internalError;
 
 import '../source/scope_listener.dart'
     show JumpTargetKind, NullValue, ScopeListener;
 
 import '../scope.dart' show ProblemBuilder;
 
 import '../source/outline_builder.dart' show asyncMarkerFromTokens;
 
@@ skipping 3079 matching lines @@
   } else if (node is PrefixBuilder) {
     return node.name;
   } else if (node is ThisAccessor) {
     return node.isSuper ? "super" : "this";
   } else if (node is FastaAccessor) {
     return node.plainNameForRead;
   } else {
     return internalError("Unhandled: ${node.runtimeType}");
   }
 }