Use FastaMessage instead of String. Part 1.

pkg/front_end/lib/src/fasta/source/outline_builder.dart

 // Copyright (c) 2016, 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.outline_builder;
 
 import 'package:kernel/ast.dart' show ProcedureKind;
 
-import '../fasta_codes.dart' show FastaMessage, codeExpectedBlockToSkip;
+import '../fasta_codes.dart' show Message, codeExpectedBlockToSkip;
 
 import '../parser/parser.dart' show FormalParameterType, MemberKind, optional;
 
 import '../parser/identifier_context.dart' show IdentifierContext;
 
 import '../../scanner/token.dart' show Token;
 
 import '../util/link.dart' show Link;
 
 import '../combinator.dart' show Combinator;
@@ skipping 129 matching lines @@
     String uri = pop();
     List<MetadataBuilder> metadata = pop();
     if (uri != null) {
       library.addImport(metadata, uri, conditionalUris, prefix, combinators,
           deferredKeyword != null, importKeyword.charOffset, prefixOffset);
     }
     checkEmpty(importKeyword.charOffset);
   }
 
   @override
-  void handleRecoverExpression(Token token, FastaMessage message) {
+  void handleRecoverExpression(Token token, Message message) {
     debugEvent("RecoverExpression");
     push(NullValue.Expression);
     push(token.charOffset);
   }
 
   @override
   void endPart(Token partKeyword, Token semicolon) {
     debugEvent("Part");
     int charOffset = popCharOffset();
     String uri = pop();
@@ skipping 662 matching lines @@
     push(new Modifier.fromString(token.stringValue));
   }
 
   @override
   void handleModifiers(int count) {
     debugEvent("Modifiers");
     push(popList(count) ?? NullValue.Modifiers);
   }
 
   @override
-  void handleRecoverableError(Token token, FastaMessage message) {
+  void handleRecoverableError(Token token, Message message) {
     if (silenceParserErrors) {
       debugEvent("RecoverableError");
     } else {
       super.handleRecoverableError(token, message);
     }
   }
 
   @override
-  Token handleUnrecoverableError(Token token, FastaMessage message) {
+  Token handleUnrecoverableError(Token token, Message message) {
     if (enableNative && message.code == codeExpectedBlockToSkip) {
       var target = library.loader.target;
       Token recover = target.skipNativeClause(token);
       if (recover != null) {
         nativeMethodName = target.extractNativeMethodName(token);
         return recover;
       }
     }
     return super.handleUnrecoverableError(token, message);
   }
 
   @override
-  void addCompileTimeErrorFromMessage(FastaMessage message) {
-    library.deprecated_addCompileTimeError(message.charOffset, message.message,
-        fileUri: message.uri);
+  void addCompileTimeError(Message message, int charOffset) {
+    library.deprecated_addCompileTimeError(charOffset, message.message,
+        fileUri: uri);
   }
 
   @override
   Link<Token> handleMemberName(Link<Token> identifiers) {
     if (!enableNative || identifiers.isEmpty) return identifiers;
     return removeNativeClause(identifiers);
   }
 
   @override
   void debugEvent(String name) {
     // printEvent(name);
   }
 }