Remove deprecated methods from ClassBuilder.

pkg/front_end/lib/src/fasta/kernel/kernel_library_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.kernel_library_builder;
 
 import 'package:kernel/ast.dart';
 
 import 'package:kernel/clone.dart' show CloneVisitor;
 
 import '../../scanner/token.dart' show Token;
 
 import '../fasta_codes.dart'
     show
         Message,
+        messageConflictsWithTypeVariableCause,
+        templateConflictsWithTypeVariable,
         templateDuplicatedExport,
         templateDuplicatedImport,
         templateExportHidesExport,
         templateImportHidesImport,
         templateLocalDefinitionHidesExport,
         templateLocalDefinitionHidesImport;
 
 import '../loader.dart' show Loader;
 
 import '../modifier.dart'
@@ skipping 125 matching lines @@
       while (member != null) {
         member.parent = cls;
         member = member.next;
       }
     }
 
     void setParentAndCheckConflicts(String name, MemberBuilder member) {
       if (typeVariablesByName != null) {
         TypeVariableBuilder tv = typeVariablesByName[name];
         if (tv != null) {
-          cls.deprecated_addCompileTimeError(
-              member.charOffset, "Conflict with type variable '$name'.");
-          cls.deprecated_addCompileTimeError(
-              tv.charOffset, "This is the type variable.");
+          cls.addCompileTimeError(
+              templateConflictsWithTypeVariable.withArguments(name),
+              member.charOffset);
+          cls.addCompileTimeError(
+              messageConflictsWithTypeVariableCause, tv.charOffset);
         }
       }
       setParent(name, member);
     }
 
     members.forEach(setParentAndCheckConflicts);
     constructors.forEach(setParentAndCheckConflicts);
     // Formally, a setter has the name `id=`, so it can never conflict with a
     // type variable.
     setters.forEach(setParent);
@@ skipping 684 matching lines @@
           mixinApplicationClasses.putIfAbsent(name, () => builder);
       if (existing != builder) {
         part.scope.local.remove(name);
       }
     });
     super.includePart(part);
     nativeMethods.addAll(part.nativeMethods);
     boundlessTypeVariables.addAll(part.boundlessTypeVariables);
   }
 }