A step towards handling `new Object()` in compile_from_dill_test

pkg/compiler/lib/src/kernel/element_map.dart

 // Copyright (c) 2017, 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.
 
 import 'package:kernel/ast.dart' as ir;
 
 import '../common.dart';
 import '../common/names.dart';
 import '../constants/constructors.dart';
 import '../constants/expressions.dart';
@@ skipping 25 matching lines @@
 
   /// Returns the [FunctionType] of the [node].
   FunctionType getFunctionType(ir.FunctionNode node);
 
   /// Returns the list of [DartType]s corresponding to [types].
   List<DartType> getDartTypes(List<ir.DartType> types);
 
   /// Returns the [InterfaceType] corresponding to [type].
   InterfaceType getInterfaceType(ir.InterfaceType type);
 
+  /// Returns the 'this type' of [cls]. That is, the instantiation of [cls]
+  /// where the type arguments are the type variables of [cls].
+  InterfaceType getThisType(ClassEntity cls);
+
   /// Return the [InterfaceType] corresponding to the [cls] with the given
   /// [typeArguments].
   InterfaceType createInterfaceType(
       ir.Class cls, List<ir.DartType> typeArguments);
 
   /// Returns the [CallStructure] corresponding to the [arguments].
   CallStructure getCallStructure(ir.Arguments arguments);
 
   /// Returns the [Selector] corresponding to the invocation or getter/setter
   /// access of [node].
@@ skipping 967 matching lines @@
   /// Call to notify that [member] is no longer being inlined.
   void leaveInlinedMember(MemberEntity member);
 
   /// Returns the [Local] for [node].
   Local getLocal(ir.VariableDeclaration node);
 
   /// Returns the [JumpTarget] for the branch in [node].
   // TODO(johnniwinther): Split this by kind of [node]?
   JumpTarget getJumpTarget(ir.TreeNode node, {bool isContinueTarget: false});
 }