enhance analyzer to parse uppercase and built-in/pseudo keywords

pkg/front_end/test/token_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/string_scanner.dart';
 import 'package:front_end/src/fasta/scanner/keyword.dart' as fasta;
 import 'package:front_end/src/fasta/scanner/token.dart' as fasta;
 import 'package:front_end/src/scanner/token.dart';
 import 'package:front_end/src/scanner/reader.dart' as analyzer;
 import 'package:test/test.dart';
@@ skipping 141 matching lines @@
     var token = scanner.tokenize();
     expect(token.matchesAny([TokenType.KEYWORD]), true);
     expect(token.matchesAny([TokenType.AMPERSAND, TokenType.KEYWORD]), true);
     expect(token.matchesAny([TokenType.AMPERSAND]), false);
   }
 
   /// Return all fasta and all analyzer keywords
   List<Keyword> get _allKeywords =>
       new List.from(Keyword.values)..addAll(fasta.Keyword.values);
 
+  void test_all_keywords() {
+    var keywords = new Set<fasta.Keyword>.from(fasta.Keyword.values);
+    for (Keyword kw in Keyword.values) {
+      expect(keywords.remove(kw), isTrue, reason: kw.name);
+    }
+    expect(keywords, isEmpty);
+  }
+
   void test_built_in_keywords() {
     var builtInKeywords = new Set<Keyword>.from([
       Keyword.ABSTRACT,
       Keyword.AS,
       Keyword.COVARIANT,
       Keyword.DEFERRED,
       Keyword.DYNAMIC,
       Keyword.EXPORT,
       Keyword.EXTERNAL,
       Keyword.FACTORY,
@@ skipping 46 matching lines @@
     // General tokens
     token = token.next;
     expect(token.lexeme, '&');
     expect(token.value(), '&');
     // String tokens
     token = token.next;
     expect(token.lexeme, '"home"');
     expect(token.value(), '"home"');
   }
 }