Dart SDK Spelling b, c, and d.

pkg/front_end/lib/src/fasta/scanner/token.dart

 // Copyright (c) 2011, 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.token;
 
 import '../../scanner/token.dart' as analyzer;
 import '../../scanner/token.dart' show TokenType;
 
 import 'token_constants.dart' show IDENTIFIER_TOKEN;
@@ skipping 283 matching lines @@
 
   @override
   Token copyWithoutComments() => isEof
       ? new SymbolToken.eof(charOffset)
       : new SyntheticSymbolToken(info, charOffset);
 }
 
 /**
  * A [BeginGroupToken] represents a symbol that may be the beginning of
  * a pair of brackets, i.e., ( { [ < or ${
- * The [endGroup] token points to the matching closing bracked in case
+ * The [endGroup] token points to the matching closing bracket in case
  * it can be identified during scanning.
  */
 class BeginGroupToken extends SymbolToken
     implements analyzer.BeginTokenWithComment {
   Token endGroup;
 
   BeginGroupToken(TokenType info, int charOffset) : super(info, charOffset);
 
   @override
   analyzer.Token get endToken => endGroup;
@@ skipping 367 matching lines @@
       identical(value, "<=") ||
       identical(value, "<") ||
       identical(value, "&") ||
       identical(value, "^") ||
       identical(value, "|");
 }
 
 bool isTernaryOperator(String value) => identical(value, "[]=");
 
 bool isMinusOperator(String value) => identical(value, "-");