Split NativeData

pkg/compiler/lib/src/inferrer/builder.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 simple_types_inferrer;
 
 import '../closure.dart' show ClosureClassMap;
 import '../common.dart';
 import '../common/names.dart' show Identifiers, Selectors;
 import '../compiler.dart' show Compiler;
@@ skipping 919 matching lines @@
       if (inferrer.hasAlreadyComputedTypeOfParameterDefault(element)) return;
       if (element.functionDeclaration != analyzedElement) {
         visitor = new ElementGraphBuilder(element.functionDeclaration,
             element.functionDeclaration.resolvedAst, compiler, inferrer);
       }
       TypeInformation type =
           (defaultValue == null) ? types.nullType : visitor.visit(defaultValue);
       inferrer.setDefaultTypeOfParameter(element, type);
     });
 
-    if (compiler.backend.isNative(analyzedElement)) {
+    if (inferrer.isNativeMember(analyzedElement)) {
       // Native methods do not have a body, and we currently just say
       // they return dynamic.
       return types.dynamicType;
     }
 
     if (analyzedElement.isGenerativeConstructor) {
       isThisExposed = false;
       signature.forEachParameter((ParameterElement element) {
         TypeInformation parameterType = inferrer.typeOfElement(element);
         if (element.isInitializingFormal) {
@@ skipping 1980 matching lines @@
     Selector moveNextSelector = Selectors.moveNext;
     TypeMask moveNextMask = inTreeData.typeOfIteratorMoveNext(node);
 
     TypeInformation iteratorType = handleDynamicSend(node, iteratorSelector,
         iteratorMask, expressionType, new ArgumentsTypes.empty());
 
     return handleForInLoop(node, iteratorType, currentSelector, currentMask,
         moveNextSelector, moveNextMask);
   }
 }