Remove use of FunctionSignature et al from call_structure.dart

pkg/compiler/lib/src/resolution/constructors.dart

 // Copyright (c) 2015, 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.resolution.constructors;
 
 import '../common.dart';
 import '../common/resolution.dart' show Resolution;
 import '../constants/constructors.dart'
     show
@@ skipping 257 matching lines @@
       result = reportAndCreateErroneousConstructor(node, constructorName, kind,
           {'constructorName': fullConstructorName});
     } else if (!lookedupConstructor.isGenerativeConstructor) {
       MessageKind kind = isThisCall
           ? MessageKind.THIS_CALL_TO_FACTORY
           : MessageKind.SUPER_CALL_TO_FACTORY;
       result =
           reportAndCreateErroneousConstructor(node, constructorName, kind, {});
     } else {
       lookedupConstructor.computeType(visitor.resolution);
-      if (!callStructure
-          .signatureApplies(lookedupConstructor.functionSignature)) {
+      if (!callStructure.signatureApplies(lookedupConstructor.type)) {
         MessageKind kind = isImplicitSuperCall
             ? MessageKind.NO_MATCHING_CONSTRUCTOR_FOR_IMPLICIT
             : MessageKind.NO_MATCHING_CONSTRUCTOR;
         result = reportAndCreateErroneousConstructor(
             node, constructorName, kind, {});
       } else if (constructor.isConst && !lookedupConstructor.isConst) {
         MessageKind kind = isImplicitSuperCall
             ? MessageKind.CONST_CALLS_NON_CONST_FOR_IMPLICIT
             : MessageKind.CONST_CALLS_NON_CONST;
         result = reportAndCreateErroneousConstructor(
@@ skipping 595 matching lines @@
     // constructors.
     return null;
   }
   // TODO(johnniwinther): Use [Name] for lookup.
   ConstructorElement constructor = cls.lookupConstructor(constructorName);
   if (constructor != null) {
     constructor = constructor.declaration;
   }
   return constructor;
 }