Rework requests in execution domain

pkg/analysis_server/test/integration/integration_test_methods.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".
 
 /**
  * Convenience methods for running integration tests
@@ skipping 1307 matching lines @@
   /**
    * Create an execution context for the executable file with the given path.
    * The context that is created will persist until execution.deleteContext is
    * used to delete it. Clients, therefore, are responsible for managing the
    * lifetime of execution contexts.
    *
    * Parameters
    *
    * contextRoot ( FilePath )
    *
-   *   The path of the Dart or HTML file that will be launched.
+   *   The path of the Dart or HTML file that will be launched, or the path of
+   *   the directory containing the file.
    *
    * Returns
    *
    * id ( ExecutionContextId )
    *
    *   The identifier used to refer to the execution context that was created.
    */
   Future<ExecutionCreateContextResult> sendExecutionCreateContext(String contextRoot) {
     var params = new ExecutionCreateContextParams(contextRoot).toJson();
     return server.send("execution.createContext", params)
@@ skipping 20 matching lines @@
         .then((result) {
       expect(result, isNull);
       return null;
     });
   }
 
   /**
    * Map a URI from the execution context to the file that it corresponds to,
    * or map a file to the URI that it corresponds to in the execution context.
    *
-   * Exactly one of the file and uri fields must be provided.
+   * Exactly one of the file and uri fields must be provided. If both fields
+   * are provided, then an error of type INVALID_PARAMETER will be generated.
+   * Similarly, if neither field is provided, then an error of type
+   * INVALID_PARAMETER will be generated.
    *
    * If the file field is provided and the value is not the path of a file
    * (either the file does not exist or the path references something other
-   * than a file), then an error of type MAP_URI_INVALID_FILE will be
-   * generated.
+   * than a file), then an error of type INVALID_PARAMETER will be generated.
    *
    * If the uri field is provided and the value is not a valid URI or if the
    * URI references something that is not a file (either a file that does not
    * exist or something other than a file), then an error of type
-   * MAP_URI_INVALID_URI will be generated.
+   * INVALID_PARAMETER will be generated.
    *
-   * If the contextRoot used to create the execution context is not a file
-   * (either the file does not exist or the path references something other
-   * than a file), then an error of type INVALID_EXECUTION_CONTEXT will be
-   * generated.
+   * If the contextRoot used to create the execution context does not exist,
+   * then an error of type INVALID_EXECUTION_CONTEXT will be generated.
    *
    * Parameters
    *
    * id ( ExecutionContextId )
    *
    *   The identifier of the execution context in which the URI is to be
    *   mapped.
    *
    * file ( optional FilePath )
    *
@@ skipping 181 matching lines @@
       case "execution.launchData":
         expect(params, isExecutionLaunchDataParams);
         _onExecutionLaunchData.add(new ExecutionLaunchDataParams.fromJson(decoder, 'params', params));
         break;
       default:
         fail('Unexpected notification: $event');
         break;
     }
   }
 }