Remove KernelToLocalsMap.getLocalFunction

pkg/compiler/lib/src/js_model/closure.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 '../common/tasks.dart';
 import '../constants/expressions.dart';
@@ skipping 353 matching lines @@
   final Local closureEntity;
   final Local thisLocal;
   final JClass closureClassEntity;
 
   final Map<Local, JField> localToFieldMap = new Map<Local, JField>();
 
   KernelClosureClass.fromScopeInfo(
       this.closureClassEntity,
       ir.FunctionNode closureSourceNode,
       KernelScopeInfo info,
-      KernelToLocalsMap localsMap)
-      : closureEntity = closureSourceNode.parent is ir.Member
-            ? null
-            // TODO(johnniwinther,efortuna): This is the only place we call
-            // [getLocalFunction]. Therefore the [closureEntity] doesn't need
-            // to be derived from the node.
-            //
-            // What we should do instead: If `closureSourceNode.parent` is
-            // an [ir.FunctionDeclaration] we should use the local for its
-            // variable. If `closureSourceNode.parent` is an
-            // [ir.FunctionExpression], we should create a fresh local.
-            : localsMap.getLocalFunction(closureSourceNode.parent),
-        thisLocal =
-            info.hasThisLocal ? new ThisLocal(localsMap.currentMember) : null,
-        super.from(info, localsMap);
+      KernelToLocalsMap localsMap,
+      this.closureEntity,
+      this.thisLocal)
+      : super.from(info, localsMap);
 
   List<Local> get createdFieldEntities => localToFieldMap.keys.toList();
 
   FieldEntity get thisFieldEntity => localToFieldMap[thisLocal];
 
   void forEachCapturedVariable(f(Local from, JField to)) {
     localToFieldMap.forEach(f);
   }
 
   @override
@@ skipping 171 matching lines @@
   KernelScopeInfo scopeInfo;
 
   /// Collected [CapturedScope] data for nodes.
   Map<ir.Node, KernelCapturedScope> capturedScopesMap =
       <ir.Node, KernelCapturedScope>{};
 
   /// Collected [ScopeInfo] data for nodes.
   Map<ir.FunctionNode, KernelScopeInfo> closuresToGenerate =
       <ir.FunctionNode, KernelScopeInfo>{};
 }