Extract InterceptorData from JavaScriptBackend.

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

 // Copyright (c) 2016, 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 'package:js_runtime/shared/embedded_names.dart';
 import 'package:kernel/ast.dart' as ir;
 
 import '../common.dart';
 import '../compiler.dart';
 import '../constants/expressions.dart';
@@ skipping 298 matching lines @@
     return _backend.constants.getConstantValue(constantExpression);
   }
 
   ConstantValue getConstantForType(ir.DartType irType) {
     ResolutionDartType type = getDartType(irType);
     return _backend.constantSystem.createType(_compiler, type.asRaw());
   }
 
   bool isIntercepted(ir.Node node) {
     Selector selector = getSelector(node);
-    return _backend.isInterceptedSelector(selector);
+    return _backend.interceptorData.isInterceptedSelector(selector);
   }
 
   bool isInterceptedSelector(Selector selector) {
-    return _backend.isInterceptedSelector(selector);
+    return _backend.interceptorData.isInterceptedSelector(selector);
   }
 
   // Is the member a lazy initialized static or top-level member?
   bool isLazyStatic(ir.Member member) {
     if (member is ir.Field) {
       FieldElement field = _nodeToElement[member];
       return field.constant == null;
     }
     return false;
   }
@@ skipping 486 matching lines @@
       JumpTarget continueTarget =
           astAdapter.getJumpTarget(switchCase, isContinueTarget: true);
       assert(continueTarget is KernelJumpTarget);
       targetIndexMap[continueTarget] = switchIndex;
       assert(builder.jumpTargets[continueTarget] == null);
       builder.jumpTargets[continueTarget] = this;
       switchIndex++;
     }
   }
 }