Explicitly specify that FilePath is not just absolute, but also a normalized path.

pkg/analysis_server/lib/plugin/protocol/generated_protocol.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.
 //
 // This file has been automatically generated.  Please do not edit it manually.
 // To regenerate the file, use the script
 // "pkg/analysis_server/tool/spec/generate_files".
 
 part of analysis_server.plugin.protocol.protocol;
 
@@ skipping 14075 matching lines @@
  * enum {
  *   CONTENT_MODIFIED
  *   FILE_NOT_ANALYZED
  *   FORMAT_INVALID_FILE
  *   FORMAT_WITH_ERRORS
  *   GET_ERRORS_INVALID_FILE
  *   GET_NAVIGATION_INVALID_FILE
  *   GET_REACHABLE_SOURCES_INVALID_FILE
  *   INVALID_ANALYSIS_ROOT
  *   INVALID_EXECUTION_CONTEXT
+ *   INVALID_FILE_PATH_FORMAT
  *   INVALID_OVERLAY_CHANGE
  *   INVALID_PARAMETER
  *   INVALID_REQUEST
  *   NO_INDEX_GENERATED
  *   ORGANIZE_DIRECTIVES_ERROR
  *   REFACTORING_REQUEST_CANCELLED
  *   SERVER_ALREADY_STARTED
  *   SERVER_ERROR
  *   SORT_MEMBERS_INVALID_FILE
  *   SORT_MEMBERS_PARSE_ERRORS
@@ skipping 53 matching lines @@
    * required to be an analysis root, but isn't.
    */
   static const INVALID_ANALYSIS_ROOT = const RequestErrorCode._("INVALID_ANALYSIS_ROOT");
 
   /**
    * The context root used to create an execution context does not exist.
    */
   static const INVALID_EXECUTION_CONTEXT = const RequestErrorCode._("INVALID_EXECUTION_CONTEXT");
 
   /**
+   * The format of the given file path is invalid, e.g. is not absolute and
+   * normalized.
+   */
+  static const INVALID_FILE_PATH_FORMAT = const RequestErrorCode._("INVALID_FILE_PATH_FORMAT");
+
+  /**
    * An "analysis.updateContent" request contained a ChangeContentOverlay
    * object which can't be applied, due to an edit having an offset or length
    * that is out of range.
    */
   static const INVALID_OVERLAY_CHANGE = const RequestErrorCode._("INVALID_OVERLAY_CHANGE");
 
   /**
    * One of the method parameters was invalid.
    */
   static const INVALID_PARAMETER = const RequestErrorCode._("INVALID_PARAMETER");
@@ skipping 74 matching lines @@
    * supported.
    *
    * This is a legacy error; it will be removed before the API reaches version
    * 1.0.
    */
   static const UNSUPPORTED_FEATURE = const RequestErrorCode._("UNSUPPORTED_FEATURE");
 
   /**
    * A list containing all of the enum values that are defined.
    */
-  static const List<RequestErrorCode> VALUES = const <RequestErrorCode>[CONTENT_MODIFIED, FILE_NOT_ANALYZED, FORMAT_INVALID_FILE, FORMAT_WITH_ERRORS, GET_ERRORS_INVALID_FILE, GET_NAVIGATION_INVALID_FILE, GET_REACHABLE_SOURCES_INVALID_FILE, INVALID_ANALYSIS_ROOT, INVALID_EXECUTION_CONTEXT, INVALID_OVERLAY_CHANGE, INVALID_PARAMETER, INVALID_REQUEST, NO_INDEX_GENERATED, ORGANIZE_DIRECTIVES_ERROR, REFACTORING_REQUEST_CANCELLED, SERVER_ALREADY_STARTED, SERVER_ERROR, SORT_MEMBERS_INVALID_FILE, SORT_MEMBERS_PARSE_ERRORS, UNANALYZED_PRIORITY_FILES, UNKNOWN_REQUEST, UNKNOWN_SOURCE, UNSUPPORTED_FEATURE];
+  static const List<RequestErrorCode> VALUES = const <RequestErrorCode>[CONTENT_MODIFIED, FILE_NOT_ANALYZED, FORMAT_INVALID_FILE, FORMAT_WITH_ERRORS, GET_ERRORS_INVALID_FILE, GET_NAVIGATION_INVALID_FILE, GET_REACHABLE_SOURCES_INVALID_FILE, INVALID_ANALYSIS_ROOT, INVALID_EXECUTION_CONTEXT, INVALID_FILE_PATH_FORMAT, INVALID_OVERLAY_CHANGE, INVALID_PARAMETER, INVALID_REQUEST, NO_INDEX_GENERATED, ORGANIZE_DIRECTIVES_ERROR, REFACTORING_REQUEST_CANCELLED, SERVER_ALREADY_STARTED, SERVER_ERROR, SORT_MEMBERS_INVALID_FILE, SORT_MEMBERS_PARSE_ERRORS, UNANALYZED_PRIORITY_FILES, UNKNOWN_REQUEST, UNKNOWN_SOURCE, UNSUPPORTED_FEATURE];
 
   final String name;
 
   const RequestErrorCode._(this.name);
 
   factory RequestErrorCode(String name) {
     switch (name) {
       case "CONTENT_MODIFIED":
         return CONTENT_MODIFIED;
       case "FILE_NOT_ANALYZED":
         return FILE_NOT_ANALYZED;
       case "FORMAT_INVALID_FILE":
         return FORMAT_INVALID_FILE;
       case "FORMAT_WITH_ERRORS":
         return FORMAT_WITH_ERRORS;
       case "GET_ERRORS_INVALID_FILE":
         return GET_ERRORS_INVALID_FILE;
       case "GET_NAVIGATION_INVALID_FILE":
         return GET_NAVIGATION_INVALID_FILE;
       case "GET_REACHABLE_SOURCES_INVALID_FILE":
         return GET_REACHABLE_SOURCES_INVALID_FILE;
       case "INVALID_ANALYSIS_ROOT":
         return INVALID_ANALYSIS_ROOT;
       case "INVALID_EXECUTION_CONTEXT":
         return INVALID_EXECUTION_CONTEXT;
+      case "INVALID_FILE_PATH_FORMAT":
+        return INVALID_FILE_PATH_FORMAT;
       case "INVALID_OVERLAY_CHANGE":
         return INVALID_OVERLAY_CHANGE;
       case "INVALID_PARAMETER":
         return INVALID_PARAMETER;
       case "INVALID_REQUEST":
         return INVALID_REQUEST;
       case "NO_INDEX_GENERATED":
         return NO_INDEX_GENERATED;
       case "ORGANIZE_DIRECTIVES_ERROR":
         return ORGANIZE_DIRECTIVES_ERROR;
@@ skipping 2608 matching lines @@
     return false;
   }
 
   @override
   int get hashCode {
     int hash = 0;
     hash = JenkinsSmiHash.combine(hash, newName.hashCode);
     return JenkinsSmiHash.finish(hash);
   }
 }