Remove >>> and >>>= from scanner.

dart/lib/compiler/implementation/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.
 
 const int EOF_TOKEN = 0;
 
 const int KEYWORD_TOKEN = $k;
 const int IDENTIFIER_TOKEN = $a;
 const int BAD_INPUT_TOKEN = $X;
 const int DOUBLE_TOKEN = $d;
@@ skipping 35 matching lines @@
 const int FUNCTION_TOKEN = LT_EQ_TOKEN + 1;
 const int SLASH_EQ_TOKEN = FUNCTION_TOKEN + 1;
 const int PERIOD_PERIOD_PERIOD_TOKEN = SLASH_EQ_TOKEN + 1;
 const int PERIOD_PERIOD_TOKEN = PERIOD_PERIOD_PERIOD_TOKEN + 1;
 const int EQ_EQ_EQ_TOKEN = PERIOD_PERIOD_TOKEN + 1;
 const int EQ_EQ_TOKEN = EQ_EQ_EQ_TOKEN + 1;
 const int LT_LT_EQ_TOKEN = EQ_EQ_TOKEN + 1;
 const int LT_LT_TOKEN = LT_LT_EQ_TOKEN + 1;
 const int GT_EQ_TOKEN = LT_LT_TOKEN + 1;
 const int GT_GT_EQ_TOKEN = GT_EQ_TOKEN + 1;
-const int GT_GT_GT_EQ_TOKEN = GT_GT_EQ_TOKEN + 1;
-const int INDEX_EQ_TOKEN = GT_GT_GT_EQ_TOKEN + 1;
+const int INDEX_EQ_TOKEN = GT_GT_EQ_TOKEN + 1;
 const int INDEX_TOKEN = INDEX_EQ_TOKEN + 1;
 const int BANG_EQ_EQ_TOKEN = INDEX_TOKEN + 1;
 const int BANG_EQ_TOKEN = BANG_EQ_EQ_TOKEN + 1;
 const int AMPERSAND_AMPERSAND_TOKEN = BANG_EQ_TOKEN + 1;
 const int AMPERSAND_EQ_TOKEN = AMPERSAND_AMPERSAND_TOKEN + 1;
 const int BAR_BAR_TOKEN = AMPERSAND_EQ_TOKEN + 1;
 const int BAR_EQ_TOKEN = BAR_BAR_TOKEN + 1;
 const int STAR_EQ_TOKEN = BAR_EQ_TOKEN + 1;
 const int PLUS_PLUS_TOKEN = STAR_EQ_TOKEN + 1;
 const int PLUS_EQ_TOKEN = PLUS_PLUS_TOKEN + 1;
 const int MINUS_MINUS_TOKEN = PLUS_EQ_TOKEN + 1;
 const int MINUS_EQ_TOKEN = MINUS_MINUS_TOKEN + 1;
 const int TILDE_SLASH_EQ_TOKEN = MINUS_EQ_TOKEN + 1;
 const int TILDE_SLASH_TOKEN = TILDE_SLASH_EQ_TOKEN + 1;
 const int PERCENT_EQ_TOKEN = TILDE_SLASH_TOKEN + 1;
 const int GT_GT_TOKEN = PERCENT_EQ_TOKEN + 1;
 const int CARET_EQ_TOKEN = GT_GT_TOKEN + 1;
 const int IS_TOKEN = CARET_EQ_TOKEN + 1;
 const int AS_TOKEN = IS_TOKEN + 1;
 const int COMMENT_TOKEN = AS_TOKEN + 1;
-const int GT_GT_GT_TOKEN = COMMENT_TOKEN + 1;
 const int STRING_INTERPOLATION_IDENTIFIER_TOKEN = COMMENT_TOKEN + 1;
 
 // TODO(ahe): Get rid of this.
 const int UNKNOWN_TOKEN = 1024;
 
 /**
  * A token that doubles as a linked list.
  */
 class Token {
   /**
@@ skipping 174 matching lines @@
     (value === '~') ||
     (value === '[]') ||
     (value === '[]=') ||
     (value === '*') ||
     (value === '/') ||
     (value === '%') ||
     (value === '~/') ||
     (value === '+') ||
     (value === '-') ||
     (value === '<<') ||
-    (value === '>>>') ||
     (value === '>>') ||
     (value === '>=') ||
     (value === '>') ||
     (value === '<=') ||
     (value === '<') ||
     (value === '&') ||
     (value === '^') ||
     (value === '|');
 }
 
@@ skipping 64 matching lines @@
                        ASSIGNMENT_PRECEDENCE, BAR_EQ_TOKEN);
 const PrecedenceInfo CARET_EQ_INFO =
   const PrecedenceInfo(const SourceString('^='),
                        ASSIGNMENT_PRECEDENCE, CARET_EQ_TOKEN);
 const PrecedenceInfo EQ_INFO =
   const PrecedenceInfo(const SourceString('='),
                        ASSIGNMENT_PRECEDENCE, EQ_TOKEN);
 const PrecedenceInfo GT_GT_EQ_INFO =
   const PrecedenceInfo(const SourceString('>>='),
                        ASSIGNMENT_PRECEDENCE, GT_GT_EQ_TOKEN);
-const PrecedenceInfo GT_GT_GT_EQ_INFO =
-  const PrecedenceInfo(const SourceString('>>>='),
-                       ASSIGNMENT_PRECEDENCE, GT_GT_GT_EQ_TOKEN);
 const PrecedenceInfo LT_LT_EQ_INFO =
   const PrecedenceInfo(const SourceString('<<='),
                        ASSIGNMENT_PRECEDENCE, LT_LT_EQ_TOKEN);
 const PrecedenceInfo MINUS_EQ_INFO =
   const PrecedenceInfo(const SourceString('-='),
                        ASSIGNMENT_PRECEDENCE, MINUS_EQ_TOKEN);
 const PrecedenceInfo PERCENT_EQ_INFO =
   const PrecedenceInfo(const SourceString('%='),
                        ASSIGNMENT_PRECEDENCE, PERCENT_EQ_TOKEN);
 const PrecedenceInfo PLUS_EQ_INFO =
@@ skipping 45 matching lines @@
 const PrecedenceInfo IS_INFO =
   const PrecedenceInfo(const SourceString('is'), 10, IS_TOKEN);
 const PrecedenceInfo AS_INFO =
   const PrecedenceInfo(const SourceString('as'), 10, AS_TOKEN);
 const PrecedenceInfo LT_EQ_INFO =
   const PrecedenceInfo(const SourceString('<='), 10, LT_EQ_TOKEN);
 const PrecedenceInfo LT_INFO =
   const PrecedenceInfo(const SourceString('<'), 10, LT_TOKEN);
 
 // Shift operators.
-const PrecedenceInfo GT_GT_GT_INFO =
-  const PrecedenceInfo(const SourceString('>>>'), 11, GT_GT_GT_TOKEN);
 const PrecedenceInfo GT_GT_INFO =
   const PrecedenceInfo(const SourceString('>>'), 11, GT_GT_TOKEN);
 const PrecedenceInfo LT_LT_INFO =
   const PrecedenceInfo(const SourceString('<<'), 11, LT_LT_TOKEN);
 
 // Additive operators.
 const PrecedenceInfo MINUS_INFO =
   const PrecedenceInfo(const SourceString('-'), 12, MINUS_TOKEN);
 const PrecedenceInfo PLUS_INFO =
   const PrecedenceInfo(const SourceString('+'), 12, PLUS_TOKEN);
@@ skipping 65 matching lines @@
 
 const PrecedenceInfo HEXADECIMAL_INFO =
   const PrecedenceInfo(const SourceString('hexadecimal'), 0, HEXADECIMAL_TOKEN);
 
 const PrecedenceInfo COMMENT_INFO =
   const PrecedenceInfo(const SourceString('comment'), 0, COMMENT_TOKEN);
 
 // For reporting lexical errors.
 const PrecedenceInfo ERROR_INFO =
   const PrecedenceInfo(const SourceString('?'), 0, UNKNOWN_TOKEN);