Remove _nodeToEntity and _nodeToThisLocal from CapturedScopeBuilder

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 '../elements/elements.dart';
@@ skipping 82 matching lines @@
     switch (definition.kind) {
       case MemberKind.regular:
       case MemberKind.constructor:
         break;
       default:
         failedAt(entity, "Unexpected member definition $definition");
     }
     ir.Node node = definition.node;
     if (_capturedScopesMap.keys.contains(node)) return;
     CapturedScopeBuilder translator = new CapturedScopeBuilder(
+        entity,
         _capturedScopesMap,
         _scopeMap,
-        entity,
         closuresToGenerate,
         _globalLocalsMap.getLocalsMap(entity),
         _elementMap);
     if (entity.isField) {
       if (node is ir.Field && node.initializer != null) {
         translator.translateLazyInitializer(node);
       }
     } else {
       assert(node is ir.Procedure || node is ir.Constructor);
       translator.translateConstructorOrProcedure(node);
@@ skipping 318 matching lines @@
   ClosureClassDefinition(this.cls, this.location);
 
   ClassKind get kind => ClassKind.closure;
 
   ir.Node get node =>
       throw new UnsupportedError('ClosureClassDefinition.node for $cls');
 
   String toString() =>
       'ClosureClassDefinition(kind:$kind,cls:$cls,location:$location)';
 }