Split InterceptorData

pkg/compiler/lib/src/ssa/nodes.dart

 // Copyright (c) 2012, 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 '../closure.dart';
 import '../common.dart';
 import '../common/backend_api.dart' show BackendClasses;
 import '../compiler.dart' show Compiler;
 import '../constants/constant_system.dart';
 import '../constants/values.dart';
@@ skipping 1710 matching lines @@
     }
   }
 
   bool isInterceptor(ClosedWorld closedWorld) {
     if (sourceElement == null) return false;
     // In case of a closure inside an interceptor class, [:this:] is
     // stored in the generated closure class, and accessed through a
     // [HFieldGet].
     if (sourceElement is ThisLocal) {
       ThisLocal thisLocal = sourceElement;
-      return closedWorld.backendClasses
+      return closedWorld.interceptorData
           .isInterceptorClass(thisLocal.enclosingClass);
     }
     return false;
   }
 
   bool canThrow() => receiver.canBeNull();
 
   HInstruction getDartReceiver(ClosedWorld closedWorld) => receiver;
   bool onlyThrowsNSM() => true;
   bool get isNullCheck => element == null;
@@ skipping 625 matching lines @@
 class HThis extends HParameterValue {
   HThis(ThisLocal element, TypeMask type) : super(element, type);
 
   ThisLocal get sourceElement => super.sourceElement;
 
   accept(HVisitor visitor) => visitor.visitThis(this);
 
   bool isCodeMotionInvariant() => true;
 
   bool isInterceptor(ClosedWorld closedWorld) {
-    return closedWorld.backendClasses
+    return closedWorld.interceptorData
         .isInterceptorClass(sourceElement.enclosingClass);
   }
 
   String toString() => 'this';
 }
 
 class HPhi extends HInstruction {
   static const IS_NOT_LOGICAL_OPERATOR = 0;
   static const IS_AND = 1;
   static const IS_OR = 2;
@@ skipping 1112 matching lines @@
 class HDynamicType extends HRuntimeType {
   HDynamicType(DynamicType dartType, TypeMask instructionType)
       : super(const <HInstruction>[], dartType, instructionType);
 
   accept(HVisitor visitor) => visitor.visitDynamicType(this);
 
   int typeCode() => HInstruction.DYNAMIC_TYPE_TYPECODE;
 
   bool typeEquals(HInstruction other) => other is HDynamicType;
 }