Extract the AST specific part of NoSuchMethodRegistry

pkg/compiler/lib/src/inferrer/type_graph_nodes.dart

 // Copyright (c) 2013, 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 compiler.src.inferrer.type_graph_nodes;
 
 import 'dart:collection' show IterableBase;
 
 import '../common.dart';
 import '../common/names.dart' show Identifiers;
@@ skipping 839 matching lines @@
     } else {
       return mask;
     }
   }
 
   bool targetsIncludeComplexNoSuchMethod(InferrerEngine inferrer) {
     return targets.any((Element e) {
       return e is FunctionElement &&
           e.isInstanceMember &&
           e.name == Identifiers.noSuchMethod_ &&
-          inferrer.backend.isComplexNoSuchMethod(e);
+          inferrer.backend.noSuchMethodRegistry.isComplex(e);
     });
   }
 
   /**
    * We optimize certain operations on the [int] class because we know more
    * about their return type than the actual Dart code. For example, we know int
    * + int returns an int. The Dart library code for [int.operator+] only says
    * it returns a [num].
    *
    * Returns the more precise TypeInformation, or `null` to defer to the library
@@ skipping 872 matching lines @@
   } else if (annotation.isVoid) {
     otherType = closedWorld.commonMasks.nullType;
   } else {
     ResolutionInterfaceType interfaceType = annotation;
     otherType = new TypeMask.nonNullSubtype(interfaceType.element, closedWorld);
   }
   if (isNullable) otherType = otherType.nullable();
   if (type == null) return otherType;
   return type.intersection(otherType, closedWorld);
 }