merge fasta.PrecedenceInfo into analyzer.TokenType

pkg/front_end/test/precedence_info_test.dart

 // Copyright (c) 2017, 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.
 
 import 'package:front_end/src/fasta/scanner/precedence.dart';
 import 'package:front_end/src/fasta/scanner/string_scanner.dart';
 import 'package:front_end/src/fasta/scanner/token.dart' as fasta;
 import 'package:front_end/src/scanner/token.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
@@ skipping 88 matching lines @@
 
   void assertInfo(check(String source, fasta.Token token),
       {bool includeLazyAssignmentOperators: true}) {
     void assertLexeme(String source) {
       if (source == null || source.isEmpty) return;
       var scanner = new StringScanner(source, includeComments: true);
       var token = scanner.tokenize();
       check(source, token);
     }
 
-    for (PrecedenceInfo info in PrecedenceInfo.all) {
+    for (TokenType info in TokenType.all) {
       assertLexeme(info.value);
     }
     for (TokenType tt in allTokenTypes) {
       assertLexeme(tt.lexeme);
     }
     assertLexeme('1.0'); // DOUBLE
     assertLexeme('0xA'); // HEXADECIMAL
     assertLexeme('1'); // INT
     assertLexeme('var'); // KEYWORD
     assertLexeme('#!/'); // SCRIPT_TAG
@@ skipping 385 matching lines @@
     assertLexeme('var', TokenType.KEYWORD);
     assertLexeme('#!/', TokenType.SCRIPT_TAG);
     assertLexeme('"foo"', TokenType.STRING);
 
     expect(STRING_INTERPOLATION_INFO,
         same(TokenType.STRING_INTERPOLATION_EXPRESSION));
     expect(STRING_INTERPOLATION_IDENTIFIER_INFO,
         same(TokenType.STRING_INTERPOLATION_IDENTIFIER));
   }
 }