Switch on null-aware operators by default in analyzer.

pkg/analyzer/test/generated/compile_time_error_code_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 engine.compile_time_error_code_test;
 
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/parser.dart' show ParserErrorCode;
 import 'package:analyzer/src/generated/source_io.dart';
@@ skipping 4739 matching lines @@
   p = 1;
 }
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [CompileTimeErrorCode.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT]);
     verify([source]);
   }
 
   void test_prefix_conditionalPropertyAccess_call() {
-    AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-    options.enableNullAwareOperators = true;
-    resetWithOptions(options);
     addNamedSource('/lib.dart', '''
 library lib;
 g() {}
 ''');
     Source source = addSource('''
 import 'lib.dart' as p;
 f() {
   p?.g();
 }
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [CompileTimeErrorCode.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT]);
     verify([source]);
   }
 
   void test_prefix_conditionalPropertyAccess_call_loadLibrary() {
-    AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-    options.enableNullAwareOperators = true;
-    resetWithOptions(options);
     addNamedSource('/lib.dart', '''
 library lib;
 ''');
     Source source = addSource('''
 import 'lib.dart' deferred as p;
 f() {
   p?.loadLibrary();
 }
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [CompileTimeErrorCode.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT]);
     verify([source]);
   }
 
   void test_prefix_conditionalPropertyAccess_get() {
-    AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-    options.enableNullAwareOperators = true;
-    resetWithOptions(options);
     addNamedSource('/lib.dart', '''
 library lib;
 var x;
 ''');
     Source source = addSource('''
 import 'lib.dart' as p;
 f() {
   return p?.x;
 }
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [CompileTimeErrorCode.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT]);
     verify([source]);
   }
 
   void test_prefix_conditionalPropertyAccess_get_loadLibrary() {
-    AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-    options.enableNullAwareOperators = true;
-    resetWithOptions(options);
     addNamedSource('/lib.dart', '''
 library lib;
 ''');
     Source source = addSource('''
 import 'lib.dart' deferred as p;
 f() {
   return p?.loadLibrary;
 }
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [CompileTimeErrorCode.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT]);
     verify([source]);
   }
 
   void test_prefix_conditionalPropertyAccess_set() {
-    AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-    options.enableNullAwareOperators = true;
-    resetWithOptions(options);
     addNamedSource('/lib.dart', '''
 library lib;
 var x;
 ''');
     Source source = addSource('''
 import 'lib.dart' as p;
 f() {
   p?.x = null;
 }
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [CompileTimeErrorCode.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT]);
     verify([source]);
   }
 
   void test_prefix_conditionalPropertyAccess_set_loadLibrary() {
-    AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-    options.enableNullAwareOperators = true;
-    resetWithOptions(options);
     addNamedSource('/lib.dart', '''
 library lib;
 ''');
     Source source = addSource('''
 import 'lib.dart' deferred as p;
 f() {
   p?.loadLibrary = null;
 }
 ''');
     computeLibrarySourceErrors(source);
@@ skipping 110 matching lines @@
   p += 1;
 }
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(
         source, [CompileTimeErrorCode.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT]);
     verify([source]);
   }
 
   void test_prefixNotFollowedByDot_conditionalMethodInvocation() {
-    AnalysisOptionsImpl options = new AnalysisOptionsImpl();
-    options.enableNullAwareOperators = true;
-    resetWithOptions(options);
     addNamedSource('/lib.dart', '''
 library lib;
 g() {}
 ''');
     Source source = addSource('''
 import 'lib.dart' as p;
 f() {
   p?.g();
 }
 ''');
@@ skipping 1139 matching lines @@
         source, [CompileTimeErrorCode.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR]);
     verify([source]);
     reset();
   }
 
   void _check_wrongNumberOfParametersForOperator1(String name) {
     _check_wrongNumberOfParametersForOperator(name, "");
     _check_wrongNumberOfParametersForOperator(name, "a, b");
   }
 }