Mostly use entities in use.dart

pkg/compiler/lib/src/ssa/kernel_ast_adapter.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.
 
 import 'package:js_runtime/shared/embedded_names.dart';
 import 'package:kernel/ast.dart' as ir;
 
 import '../common.dart';
 import '../common/names.dart';
 import '../compiler.dart';
@@ skipping 100 matching lines @@
   }
 
   // TODO(johnniwinther): Use the more precise functions below.
   Element getElement(ir.Node node) {
     Element result = _nodeToElement[node];
     assert(invariant(CURRENT_ELEMENT_SPANNABLE, result != null,
         message: "No element found for $node."));
     return result;
   }
 
+  ConstructorElement getConstructor(ir.Node node) =>
+      getElement(node).declaration;
+
   MemberElement getMember(ir.Node node) => getElement(node).declaration;
 
   MethodElement getMethod(ir.Node node) => getElement(node).declaration;
 
   FieldElement getField(ir.Node node) => getElement(node).declaration;
 
   ClassElement getClass(ir.Node node) => getElement(node).declaration;
 
   ast.Node getNode(ir.Node node) {
     ast.Node result = _nodeToAst[node];
@@ skipping 858 matching lines @@
 
   @override
   String get name => null;
 
   @override
   int get nestingLevel => 1;
 
   @override
   ast.Node get statement => null;
 }