Don't summarize labels, remove resynthesis code for labels.

pkg/analyzer/lib/src/summary/summarize_ast.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 serialization.summarize_ast;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/dart/element/type.dart' show DartType;
@@ skipping 217 matching lines @@
    */
   List<UnlinkedExecutableBuilder> executables = <UnlinkedExecutableBuilder>[];
 
   /**
    * List of objects which should be written to [UnlinkedUnit.exports].
    */
   final List<UnlinkedExportNonPublicBuilder> exports =
       <UnlinkedExportNonPublicBuilder>[];
 
   /**
-   * List of objects which should be written to
-   * [UnlinkedExecutable.localLabels].
-   */
-  List<UnlinkedLabelBuilder> labels = <UnlinkedLabelBuilder>[];
-
-  /**
    * List of objects which should be written to [UnlinkedUnit.parts].
    */
   final List<UnlinkedPartBuilder> parts = <UnlinkedPartBuilder>[];
 
   /**
    * List of objects which should be written to [UnlinkedUnit.typedefs].
    */
   final List<UnlinkedTypedefBuilder> typedefs = <UnlinkedTypedefBuilder>[];
 
   /**
@@ skipping 442 matching lines @@
       bool forConst) {
     if (body is BlockFunctionBody || body is ExpressionFunctionBody) {
       for (UnlinkedParamBuilder parameter in b.parameters) {
         if (!parameter.isInitializingFormal) {
           parameter.visibleOffset = body.offset;
           parameter.visibleLength = body.length;
         }
       }
     }
     List<UnlinkedExecutableBuilder> oldExecutables = executables;
-    List<UnlinkedLabelBuilder> oldLabels = labels;
     Map<int, int> oldLocalClosureIndexMap = _localClosureIndexMap;
     bool oldSerializeClosureBodyExprs = _serializeClosureBodyExprs;
     executables = <UnlinkedExecutableBuilder>[];
-    labels = <UnlinkedLabelBuilder>[];
     _localClosureIndexMap = <int, int>{};
     _serializeClosureBodyExprs = serializeBodyExpr;
     if (initializers != null) {
       for (ConstructorInitializer initializer in initializers) {
         initializer.accept(this);
       }
     }
     if (serializeBody) {
       body.accept(this);
     }
     if (serializeBodyExpr) {
       if (body is Expression) {
         b.bodyExpr = serializeConstExpr(
             forConst, _localClosureIndexMap, body, _parameterNames);
       } else if (body is ExpressionFunctionBody) {
         b.bodyExpr = serializeConstExpr(
             forConst, _localClosureIndexMap, body.expression, _parameterNames);
       } else {
         // TODO(paulberry): serialize other types of function bodies.
       }
     }
     b.localFunctions = executables;
-    b.localLabels = labels;
     Map<int, int> localClosureIndexMap = _localClosureIndexMap;
     executables = oldExecutables;
-    labels = oldLabels;
     _localClosureIndexMap = oldLocalClosureIndexMap;
     _serializeClosureBodyExprs = oldSerializeClosureBodyExprs;
     return localClosureIndexMap;
   }
 
   /**
    * Serialize the return type and parameters of a function-typed formal
    * parameter and store them in [b].
    */
   void serializeFunctionTypedParameterDetails(UnlinkedParamBuilder b,
@@ skipping 550 matching lines @@
       b.prefixOffset = node.prefix.offset;
     }
     b.isDeferred = node.deferredKeyword != null;
     b.uri = node.uri.stringValue;
     b.uriOffset = node.uri.offset;
     b.uriEnd = node.uri.end;
     unlinkedImports.add(b);
   }
 
   @override
-  void visitLabel(Label node) {
-    AstNode parent = node.parent;
-    if (parent is! NamedExpression) {
-      labels.add(new UnlinkedLabelBuilder(
-          name: node.label.name,
-          nameOffset: node.offset,
-          isOnSwitchMember: parent is SwitchMember,
-          isOnSwitchStatement: parent is LabeledStatement &&
-              parent.statement is SwitchStatement));
-    }
-  }
-
-  @override
   void visitLibraryDirective(LibraryDirective node) {
     libraryName =
         node.name.components.map((SimpleIdentifier id) => id.name).join('.');
     libraryNameOffset = node.name.offset;
     libraryNameLength = node.name.length;
     isCoreLibrary = libraryName == 'dart.core';
     libraryDocumentationComment =
         serializeDocumentation(node.documentationComment);
     libraryAnnotations = serializeAnnotations(node.metadata);
   }
@@ skipping 78 matching lines @@
 /**
  * A [_TypeParameterScope] is a [_Scope] which defines [_ScopedTypeParameter]s.
  */
 class _TypeParameterScope extends _Scope {
   /**
    * Get the number of [_ScopedTypeParameter]s defined in this
    * [_TypeParameterScope].
    */
   int get length => _definedNames.length;
 }