Initial Bazel file resolver support.

pkg/analyzer/lib/src/generated/engine.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.engine;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
+import 'package:analyzer/plugin/resolver_provider.dart';
 import 'package:analyzer/source/embedder.dart';
 import 'package:analyzer/src/cancelable_future.dart';
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:analyzer/src/generated/resolver.dart';
 import 'package:analyzer/src/generated/source.dart';
@@ skipping 301 matching lines @@
    * Return `true` if the given [source] exists.
    *
    * This method should be used rather than the method [Source.exists] because
    * contexts can have local overrides of the content of a source that the
    * source is not aware of and a source with local content is considered to
    * exist even if there is no file on disk.
    */
   bool exists(Source source);
 
   /**
+   * The file resolver provider used to override the way file URI's are
+   * resolved in some contexts.
+   */
+  ResolverProvider fileResolverProvider;
+
+  /**
    * Return the element model corresponding to the compilation unit defined by
    * the given [unitSource] in the library defined by the given [librarySource],
    * or `null` if the element model does not currently exist or if the library
    * cannot be analyzed for some reason.
    */
   CompilationUnitElement getCompilationUnitElement(
       Source unitSource, Source librarySource);
 
   /**
    * Return configuration data associated with the given key or the [key]'s
@@ skipping 2242 matching lines @@
    * The data that was created from the source.
    */
   final E data;
 
   /**
    * Initialize a newly created holder to associate the given [data] with the
    * given [modificationTime].
    */
   TimestampedData(this.modificationTime, this.data);
 }