Initial Bazel file resolver support.

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

Index: pkg/analyzer/lib/src/generated/engine.dart
diff --git a/pkg/analyzer/lib/src/generated/engine.dart b/pkg/analyzer/lib/src/generated/engine.dart
index 94e6b3bef0d41c1058a2cb81b30d9a1e949cbdc6..4e677928657cb3e4f227e36f17f5adf0be735fbb 100644
--- a/pkg/analyzer/lib/src/generated/engine.dart
+++ b/pkg/analyzer/lib/src/generated/engine.dart
@@ -11,6 +11,7 @@ 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';
@@ -332,6 +333,12 @@ abstract class AnalysisContext {
   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