Handle const list and map literals.

pkg/front_end/lib/src/fasta/parser/parser.dart

 // Copyright (c) 2012, 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.parser.parser;
 
 import '../fasta_codes.dart'
     show
         FastaCode,
         FastaMessage,
@@ skipping 3075 matching lines @@
     listener.endNewExpression(newKeyword);
     return token;
   }
 
   Token parseConstExpression(Token token) {
     Token constKeyword = token;
     token = expect('const', token);
     token = _injectGenericCommentTypeList(token);
     final String value = token.stringValue;
     if ((identical(value, '[')) || (identical(value, '[]'))) {
+      listener.beginConstLiteral(token);
       listener.handleNoTypeArguments(token);
-      return parseLiteralListSuffix(token, constKeyword);
+      token = parseLiteralListSuffix(token, constKeyword);
+      listener.endConstLiteral(token);
+      return token;
     }
     if (identical(value, '{')) {
+      listener.beginConstLiteral(token);
       listener.handleNoTypeArguments(token);
-      return parseLiteralMapSuffix(token, constKeyword);
+      token = parseLiteralMapSuffix(token, constKeyword);
+      listener.endConstLiteral(token);
+      return token;
     }
     if (identical(value, '<')) {
-      return parseLiteralListOrMapOrFunction(token, constKeyword);
+      listener.beginConstLiteral(token);
+      token = parseLiteralListOrMapOrFunction(token, constKeyword);
+      listener.endConstLiteral(token);
+      return token;
     }
     listener.beginConstExpression(constKeyword);
     token = parseConstructorReference(token);
     token = parseRequiredArguments(token);
     listener.endConstExpression(constKeyword);
     return token;
   }
 
   Token parseLiteralInt(Token token) {
     listener.handleLiteralInt(token);
@@ skipping 740 matching lines @@
     previous.setNext(firstToken);
     beforeToken = firstToken;
   }
 }
 
 typedef FastaMessage NoArgument(Uri uri, int charOffset);
 
 typedef FastaMessage TokenArgument(Uri uri, int charOffset, Token token);
 
 typedef FastaMessage StringArgument(Uri uri, int charOffset, String string);