Compute closure model during resolution

pkg/compiler/lib/src/kernel/element_map_impl.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.
 
 library dart2js.kernel.element_map;
 
 import 'package:kernel/ast.dart' as ir;
 
 import '../common.dart';
 import '../common/names.dart' show Identifiers;
@@ skipping 1040 matching lines @@
   }
 
   @override
   native.BehaviorBuilder get nativeBehaviorBuilder =>
       _nativeBehaviorBuilder ??= new KernelBehaviorBuilder(commonElements);
 
   ResolutionImpact computeWorldImpact(KMember member) {
     return _memberData[member.memberIndex].getWorldImpact(this);
   }
 
+  ClosureModel computeClosureModel(KMember member) {
+    ir.Member node = _memberData[member.memberIndex].node;
+    return KernelClosureAnalysis.computeClosureModel(member, node);
+  }
+
   /// Returns the kernel [ir.Procedure] node for the [method].
   ir.Procedure _lookupProcedure(KFunction method) {
     return _memberData[method.memberIndex].node;
   }
 
   Iterable<ConstantValue> _getClassMetadata(KClass cls) {
     return _classData[cls.classIndex].getMetadata(this);
   }
 
   @override
@@ skipping 923 matching lines @@
       if (data.constructorBody != null) {
         f(data.constructorBody);
       }
     });
   }
 
   String getDeferredUri(ir.LibraryDependency node) {
     throw new UnimplementedError('JsKernelToElementMap.getDeferredUri');
   }
 }