Add lineLength parameter to edit.format request (issue 23519)

pkg/analysis_server/test/integration/integration_test_methods.dart

Index: pkg/analysis_server/test/integration/integration_test_methods.dart
diff --git a/pkg/analysis_server/test/integration/integration_test_methods.dart b/pkg/analysis_server/test/integration/integration_test_methods.dart
index eba2bda6f09db8083963a1f5d9c2ae2e8c2426fe..3b609f2d8d94adc68d6026f5d7228bbd0bc0f830 100644
--- a/pkg/analysis_server/test/integration/integration_test_methods.dart
+++ b/pkg/analysis_server/test/integration/integration_test_methods.dart
@@ -1090,6 +1090,10 @@ abstract class IntegrationTestMixin {
    *
    *   The length of the current selection in the file.
    *
+   * lineLength ( optional int )
+   *
+   *   The line length to be used by the formatter.
+   *
    * Returns
    *
    * edits ( List<SourceEdit> )
@@ -1105,8 +1109,8 @@ abstract class IntegrationTestMixin {
    *
    *   The length of the selection after formatting the code.
    */
-  Future<EditFormatResult> sendEditFormat(String file, int selectionOffset, int selectionLength) {
-    var params = new EditFormatParams(file, selectionOffset, selectionLength).toJson();
+  Future<EditFormatResult> sendEditFormat(String file, int selectionOffset, int selectionLength, {int lineLength}) {
+    var params = new EditFormatParams(file, selectionOffset, selectionLength, lineLength: lineLength).toJson();
     return server.send("edit.format", params)
         .then((result) {
       ResponseDecoder decoder = new ResponseDecoder(null);