Get rid of _inFunction in ApiElementBuilder.

pkg/analyzer/lib/src/generated/incremental_resolver.dart

 // Copyright (c) 2014, 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 analyzer.src.generated.incremental_resolver;
 
 import 'dart:collection';
 import 'dart:math' as math;
 
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 256 matching lines @@
       _updateEntry();
     } finally {
       logger.exit();
     }
   }
 
   void _buildElements(Declaration executable, AstNode node) {
     LoggingTimer timer = logger.startTimer();
     try {
       ElementHolder holder = new ElementHolder();
-      ElementBuilder builder = new ElementBuilder(holder, _definingUnit);
-      builder.initForFunctionBodyIncrementalResolution();
-      node.accept(builder);
+      node.accept(new LocalElementBuilder(holder, _definingUnit));
       // Move local elements into the ExecutableElementImpl.
       ExecutableElementImpl executableElement =
           executable.element as ExecutableElementImpl;
       executableElement.localVariables = holder.localVariables;
       executableElement.functions = holder.functions;
       executableElement.labels = holder.labels;
       holder.validate();
     } finally {
       timer.stop('build elements');
     }
@@ skipping 1015 matching lines @@
   @override
   String toString() => name;
 }
 
 class _TokenPair {
   final _TokenDifferenceKind kind;
   final Token oldToken;
   final Token newToken;
   _TokenPair(this.kind, this.oldToken, this.newToken);
 }