Library dependencies server API updates (to pass package maps).

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

Index: pkg/analyzer/lib/src/generated/source.dart
===================================================================
--- pkg/analyzer/lib/src/generated/source.dart	(revision 43154)
+++ pkg/analyzer/lib/src/generated/source.dart	(working copy)
@@ -10,6 +10,9 @@
 import "dart:math" as math;
 import 'dart:collection';
 
+import 'package:analyzer/file_system/file_system.dart';
+import 'package:analyzer/source/package_map_resolver.dart';
+
 import 'engine.dart';
 import 'java_core.dart';
 import 'java_engine.dart';
@@ -595,6 +598,14 @@
     this._localSourcePredicate = localSourcePredicate;
   }
 
+  /// A table mapping package names to paths of directories containing
+  /// the package (or [null] if there is no registered package URI resolver).
+  Map<String, List<Folder>> get packageMap {
+    PackageMapUriResolver resolver =
+        _resolvers.firstWhere((r) => r is PackageMapUriResolver, orElse: null);
+    return resolver != null ? resolver.packageMap : null;
+  }
+
   /**
    * Return a source object representing the given absolute URI, or `null` if the URI is not a
    * valid URI or if it is not an absolute URI.