Hook for overriding the creation of a package resolver

pkg/analysis_server/lib/starter.dart

Index: pkg/analysis_server/lib/starter.dart
diff --git a/pkg/analysis_server/lib/starter.dart b/pkg/analysis_server/lib/starter.dart
index dae6a05e7152bf96e787081292b7d77def37f135..e96c8b3d4d3933258e9dba685d3c3672234f2844 100644
--- a/pkg/analysis_server/lib/starter.dart
+++ b/pkg/analysis_server/lib/starter.dart
@@ -5,6 +5,7 @@
 library driver;
 
 import 'package:analysis_server/src/server/driver.dart';
+import 'package:analysis_server/uri/resolver_provider.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
 import 'package:plugin/plugin.dart';
 
@@ -23,6 +24,13 @@ abstract class ServerStarter {
   void set instrumentationServer(InstrumentationServer server);
 
   /**
+   * Set the package resolver provider used to override the way package URI's
+   * are resolved in some contexts. The provider should return `null` if the
+   * default package resolution scheme should be used instead.
+   */
+  void set packageResolverProvider(ResolverProvider provider);
+
+  /**
    * Set the [plugins] that are defined outside the analysis_server package.
    */
   void set userDefinedPlugins(List<Plugin> plugins);