Add package root setting to analysis server API.

pkg/analysis_server/lib/src/analysis_server.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 analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 418 matching lines @@
             return;
           }
           if (response != null) {
             channel.sendResponse(response);
             return;
           }
         } on RequestFailure catch (exception) {
           channel.sendResponse(exception.response);
           return;
         } catch (exception, stackTrace) {
-          RequestError error = new RequestError(
-              RequestErrorCode.SERVER_ERROR,
-              exception);
+          RequestError error =
+              new RequestError(RequestErrorCode.SERVER_ERROR, exception);
           if (stackTrace != null) {
             error.stackTrace = stackTrace.toString();
           }
           Response response = new Response(request.id, error: error);
           channel.sendResponse(response);
           return;
         }
       }
       channel.sendResponse(new Response.unknownRequest(request));
     }, onError: _sendServerErrorNotification);
@@ skipping 104 matching lines @@
    * TODO(scheglov) implement complete projects/contexts semantics.
    *
    * The current implementation is intentionally simplified and expected
    * that only folders are given each given folder corresponds to the exactly
    * one context.
    *
    * So, we can start working in parallel on adding services and improving
    * projects/contexts support.
    */
   void setAnalysisRoots(String requestId, List<String> includedPaths,
-      List<String> excludedPaths) {
+      List<String> excludedPaths, Map<String, String> packageRoots) {
     try {
-      contextDirectoryManager.setRoots(includedPaths, excludedPaths);
+      contextDirectoryManager.setRoots(
+          includedPaths,
+          excludedPaths,
+          packageRoots);
     } on UnimplementedError catch (e) {
       throw new RequestFailure(
           new Response.unsupportedFeature(requestId, e.message));
     }
   }
 
   /**
    * Implementation for `analysis.updateContent`.
    */
   void updateContent(String id, Map<String, dynamic> changes) {
@@ skipping 355 matching lines @@
     // send the notification
     channel.sendNotification(
         new ServerErrorParams(
             true,
             exceptionString,
             stackTraceString).toNotification());
   }
 }
 
 typedef void OptionUpdater(AnalysisOptionsImpl options);