Add ConstructorBodyEntity

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 '../closure.dart';
 import '../common.dart';
 import '../constants/values.dart';
 import '../common_elements.dart';
@@ skipping 170 matching lines @@
   /// the initializer is not a constant expression.
   ConstantValue getFieldConstantValue(ir.Field field);
 
   /// Returns the `noSuchMethod` [FunctionEntity] call from a
   /// `super.noSuchMethod` invocation within [cls].
   FunctionEntity getSuperNoSuchMethod(ClassEntity cls);
 
   /// Returns a [Spannable] for a message pointing to the IR [node] in the
   /// context of [member].
   Spannable getSpannable(MemberEntity member, ir.Node node);
+
+  /// Returns the constructor body entity corresponding to [constructor].
+  FunctionEntity getConstructorBody(ir.Constructor node);
+
+  /// Returns the uri for the deferred import [node].
+  // TODO(johnniwinther): Avoid this method by deriving the uri directly from
+  // the node.
+  String getDeferredUri(ir.LibraryDependency node);
 }
 
 /// Kinds of foreign functions.
 enum ForeignKind {
   JS,
   JS_BUILTIN,
   JS_EMBEDDED_GLOBAL,
   JS_INTERCEPTOR_CONSTANT,
   NONE,
 }
@@ skipping 109 matching lines @@
   /// Returns the [LoopClosureScope] for the loop [node] in [closureClassMaps].
   LoopClosureScope getLoopClosureScope(
       ClosureDataLookup closureLookup, ir.TreeNode node);
 }
 
 /// Comparator for the canonical order or named arguments.
 // TODO(johnniwinther): Remove this when named parameters are sorted in dill.
 int namedOrdering(ir.VariableDeclaration a, ir.VariableDeclaration b) {
   return a.name.compareTo(b.name);
 }