Fix for exchaning comparison operators arguments.

pkg/analysis_server/test/services/correction/assist_test.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 test.services.correction.assist;
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/correction/assist.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/index/local_memory_index.dart';
@@ skipping 990 matching lines @@
 }
 main(A a) {
   !a.isEmpty;
 }
 ''');
     assertNoAssistAt('isEmpty;', AssistKind.CONVERT_INTO_IS_NOT_EMPTY);
   }
 
   void test_exchangeBinaryExpressionArguments_OK_compare() {
     Map<String, String> operatorMap = {
-      '<': '>=',
-      '<=': '>',
-      '>': '<=',
-      '>=': '<'
+      '<': '>',
+      '<=': '>=',
+      '>': '<',
+      '>=': '<='
     };
     operatorMap.forEach((initialOperator, resultOperator) {
       _indexTestUnit('''
 bool main(int a, int b) {
   return a $initialOperator b;
 }
 ''');
       assertHasAssistAt(initialOperator, AssistKind.EXCHANGE_OPERANDS, '''
 bool main(int a, int b) {
   return b $resultOperator a;
@@ skipping 1579 matching lines @@
   void _indexTestUnit(String code) {
     resolveTestUnit(code);
     index.indexUnit(context, testUnit);
   }
 
   void _setStartEndSelection() {
     offset = findOffset('// start\n') + '// start\n'.length;
     length = findOffset('// end') - offset;
   }
 }