Enable generic method support by default

pkg/analyzer/lib/src/task/options.dart

 // Copyright (c) 2015, 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 analyzer.src.task.options;
 
 import 'dart:collection';
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/plugin/options.dart';
@@ skipping 496 matching lines @@
       }
     }
     if (feature == AnalyzerOptions.enableSuperMixins) {
       if (isTrue(value)) {
         AnalysisOptionsImpl options =
             new AnalysisOptionsImpl.from(context.analysisOptions);
         options.enableSuperMixins = true;
         context.analysisOptions = options;
       }
     }
-    if (feature == AnalyzerOptions.enableGenericMethods) {
-      if (isTrue(value)) {
-        AnalysisOptionsImpl options =
-            new AnalysisOptionsImpl.from(context.analysisOptions);
-        options.enableGenericMethods = true;
-        context.analysisOptions = options;
-      }
-    }
   }
 
   void setLanguageOptions(AnalysisContext context, Object configs) {
     if (configs is YamlMap) {
       configs.nodes.forEach((k, v) {
         if (k is YamlScalar && v is YamlScalar) {
           String feature = k.value?.toString();
           setLanguageOption(context, feature, v.value);
         }
       });
@@ skipping 28 matching lines @@
   void _applyLanguageOption(
       AnalysisOptionsImpl options, Object feature, Object value) {
     bool boolValue = toBool(value);
     if (boolValue != null) {
       if (feature == AnalyzerOptions.enableAssertInitializer) {
         options.enableAssertInitializer = boolValue;
       } else if (feature == AnalyzerOptions.enableInitializingFormalAccess) {
         options.enableInitializingFormalAccess = boolValue;
       } else if (feature == AnalyzerOptions.enableSuperMixins) {
         options.enableSuperMixins = boolValue;
-      } else if (feature == AnalyzerOptions.enableGenericMethods) {
-        options.enableGenericMethods = boolValue;
       }
     }
   }
 
   void _applyLanguageOptions(AnalysisOptionsImpl options, Object configs) {
     if (configs is YamlMap) {
       configs.nodes.forEach((key, value) {
         if (key is YamlScalar && value is YamlScalar) {
           String feature = key.value?.toString();
           _applyLanguageOption(options, feature, value.value);
@@ skipping 27 matching lines @@
         }
       });
     } else if (config is Map) {
       options.strongMode = true;
       config.forEach((k, v) => _applyStrongModeOption(options, k, v));
     } else {
       options.strongMode = config is bool ? config : false;
     }
   }
 }