Isse 25404. When remove a method during inlining, remove also leading empty lines.

pkg/analysis_server/lib/src/services/refactoring/inline_method.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 services.src.refactoring.inline_method;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
 import 'package:analysis_server/src/services/correction/source_range.dart';
@@ skipping 245 matching lines @@
     if (deleteSource && !inlineAll) {
       result.addError('All references must be inlined to remove the source.');
     }
     // prepare changes
     for (_ReferenceProcessor processor in _referenceProcessors) {
       processor._process(result);
     }
     // delete method
     if (deleteSource && inlineAll) {
       SourceRange methodRange = rangeNode(_methodNode);
-      SourceRange linesRange = _methodUtils.getLinesRange(methodRange);
+      SourceRange linesRange =
+          _methodUtils.getLinesRange(methodRange, skipLeadingEmptyLines: true);
       doSourceChange_addElementEdit(
           change, _methodElement, newSourceEdit_range(linesRange, ''));
     }
     // done
     return new Future.value(result);
   }
 
   @override
   Future<RefactoringStatus> checkInitialConditions() async {
     RefactoringStatus result = new RefactoringStatus();
@@ skipping 545 matching lines @@
   }
 
   void _addVariable(SimpleIdentifier node) {
     VariableElement variableElement = getLocalVariableElement(node);
     if (variableElement != null) {
       SourceRange nodeRange = rangeNode(node);
       result.addVariable(variableElement, nodeRange);
     }
   }
 }