Remove deprecated string features.

utils/template/tokenkind.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.
 
 // TODO(terry): Need to be consistent with tokens either they're ASCII tokens
 //              e.g., ASTERISK or they're CSS e.g., PSEUDO, COMBINATOR_*.
 class TokenKind {
   // Common shared tokens used in TokenizerBase.
   static const int UNUSED = 0;                  // Unused place holder...
   static const int END_OF_FILE = 1;
@@ skipping 294 matching lines @@
    * Return the token that matches the unit ident found.
    */
   static int matchList(var identList, String tokenField, String text,
                        int offset, int length) {
     for (final entry in identList) {
       String ident = entry['value'];
       if (length == ident.length) {
         int idx = offset;
         bool match = true;
         for (int identIdx = 0; identIdx < ident.length; identIdx++) {
-          int identChar = ident.charCodeAt(identIdx);
-          int char = text.charCodeAt(idx++);
+          int identChar = ident.codeUnitAt(identIdx);
+          int char = text.codeUnitAt(idx++);
           // Compare lowercase to lowercase then check if char is uppercase.
           match = match && (char == identChar ||
               ((char >= ASCII_UPPER_A && char <= ASCII_UPPER_Z) &&
                (char + 32) == identChar));
           if (!match) {
             break;
           }
         }
 
         if (match) {
@@ skipping 91 matching lines @@
         throw "Unknown TOKEN";
     }
   }
 
   TokenKind() {
     tokens = [];
 
     // All tokens must be in TokenKind order.
     tokens.add(-1);                 // TokenKind.UNUSED
     tokens.add(0);                  // TokenKind.END_OF_FILE match base
-    tokens.add(TokenKind.kindToString(TokenKind.LPAREN).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.RPAREN).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.LBRACK).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.RBRACK).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.LBRACE).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.RBRACE).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.DOT).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.SEMICOLON).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.SPACE).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.TAB).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.NEWLINE).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.RETURN).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.COMMA).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.LESS_THAN).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.GREATER_THAN).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.SLASH).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.DOLLAR).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.HASH).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.MINUS).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.EQUAL).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.DOUBLE_QUOTE).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.SINGLE_QUOTE).charCodeAt(0));
-    tokens.add(TokenKind.kindToString(TokenKind.ASTERISK).charCodeAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.LPAREN).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.RPAREN).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.LBRACK).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.RBRACK).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.LBRACE).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.RBRACE).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.DOT).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.SEMICOLON).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.SPACE).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.TAB).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.NEWLINE).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.RETURN).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.COMMA).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.LESS_THAN).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.GREATER_THAN).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.SLASH).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.DOLLAR).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.HASH).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.MINUS).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.EQUAL).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.DOUBLE_QUOTE).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.SINGLE_QUOTE).codeUnitAt(0));
+    tokens.add(TokenKind.kindToString(TokenKind.ASTERISK).codeUnitAt(0));
 
     assert(tokens.length == TokenKind.END_TOKENS);
   }
 
   static bool isIdentifier(int kind) {
     return kind == IDENTIFIER;
   }
 }
 
 class NoElementMatchException implements Exception {
   String _tagName;
   NoElementMatchException(this._tagName);
 
   String get name => _tagName;
 }