Scan generic method comments with Fasta.

pkg/front_end/lib/src/fasta/scanner/precedence.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 fasta.scanner.precedence;
 
 import '../../scanner/token.dart';
 import 'token_constants.dart';
 
 class PrecedenceInfo implements TokenType {
@@ skipping 77 matching lines @@
     INT_INFO,
     STRING_INFO,
     OPEN_SQUARE_BRACKET_INFO,
     CLOSE_SQUARE_BRACKET_INFO,
     DOUBLE_INFO,
     STRING_INTERPOLATION_INFO,
     STRING_INTERPOLATION_IDENTIFIER_INFO,
     HEXADECIMAL_INFO,
     SINGLE_LINE_COMMENT_INFO,
     MULTI_LINE_COMMENT_INFO,
+    GENERIC_METHOD_TYPE_ASSIGN,
+    GENERIC_METHOD_TYPE_LIST,
   ];
 
   @override
   bool get isAdditiveOperator => precedence == ADDITIVE_PRECEDENCE;
 
   @override
   bool get isAssignmentOperator => precedence == ASSIGNMENT_PRECEDENCE;
 
   @override
   bool get isAssociativeOperator =>
@@ skipping 281 matching lines @@
         STRING_INTERPOLATION_IDENTIFIER_TOKEN);
 
 const PrecedenceInfo HEXADECIMAL_INFO =
     const PrecedenceInfo('hexadecimal', 'HEXADECIMAL', 0, HEXADECIMAL_TOKEN);
 
 const PrecedenceInfo SINGLE_LINE_COMMENT_INFO =
     const PrecedenceInfo('comment', 'SINGLE_LINE_COMMENT', 0, COMMENT_TOKEN);
 
 const PrecedenceInfo MULTI_LINE_COMMENT_INFO =
     const PrecedenceInfo('comment', 'MULTI_LINE_COMMENT', 0, COMMENT_TOKEN);
+
+const PrecedenceInfo GENERIC_METHOD_TYPE_ASSIGN = const PrecedenceInfo(
+    'generic_comment_assign',
+    'GENERIC_METHOD_TYPE_ASSIGN',
+    0,
+    GENERIC_METHOD_TYPE_ASSIGN_TOKEN);
+
+const PrecedenceInfo GENERIC_METHOD_TYPE_LIST = const PrecedenceInfo(
+    'generic_comment_list',
+    'GENERIC_METHOD_TYPE_LIST',
+    0,
+    GENERIC_METHOD_TYPE_LIST_TOKEN);