Extract InterceptorData from JavaScriptBackend.

pkg/compiler/lib/src/ssa/interceptor_simplifier.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.
 
 import '../common/backend_api.dart' show BackendClasses;
 import '../compiler.dart' show Compiler;
 import '../constants/constant_system.dart';
 import '../constants/values.dart';
 import '../elements/entities.dart';
 import '../js_backend/backend.dart';
@@ skipping 206 matching lines @@
         user.inputs.where((input) => input == used).length;
 
     Set<ClassEntity> interceptedClasses;
     HInstruction dominator = findDominator(node.usedBy);
     // If there is a call that dominates all other uses, we can use just the
     // selector of that instruction.
     if (dominator is HInvokeDynamic &&
         dominator.isCallOnInterceptor(closedWorld) &&
         node == dominator.receiver &&
         useCount(dominator, node) == 1) {
-      interceptedClasses =
-          backend.getInterceptedClassesOn(dominator.selector.name);
+      interceptedClasses = backend.interceptorData
+          .getInterceptedClassesOn(dominator.selector.name);
 
       // If we found that we need number, we must still go through all
       // uses to check if they require int, or double.
       if (interceptedClasses.contains(backendClasses.numClass) &&
           !(interceptedClasses.contains(backendClasses.doubleClass) ||
               interceptedClasses.contains(backendClasses.intClass))) {
         Set<ClassEntity> required;
         for (HInstruction user in node.usedBy) {
           if (user is! HInvoke) continue;
-          Set<ClassEntity> intercepted =
-              backend.getInterceptedClassesOn(user.selector.name);
+          Set<ClassEntity> intercepted = backend.interceptorData
+              .getInterceptedClassesOn(user.selector.name);
           if (intercepted.contains(backendClasses.intClass)) {
             // TODO(johnniwinther): Use type argument when all uses of
             // intercepted classes expect entities instead of elements.
             required ??= new Set/*<ClassEntity>*/();
             required.add(backendClasses.intClass);
           }
           if (intercepted.contains(backendClasses.doubleClass)) {
             // TODO(johnniwinther): Use type argument when all uses of
             // intercepted classes expect entities instead of elements.
             required ??= new Set/*<ClassEntity>*/();
             required.add(backendClasses.doubleClass);
           }
         }
         // Don't modify the result of [backend.getInterceptedClassesOn].
         if (required != null) {
           interceptedClasses = interceptedClasses.union(required);
         }
       }
     } else {
       // TODO(johnniwinther): Use type argument when all uses of intercepted
       // classes expect entities instead of elements.
       interceptedClasses = new Set/*<ClassEntity>*/();
       for (HInstruction user in node.usedBy) {
         if (user is HInvokeDynamic &&
             user.isCallOnInterceptor(closedWorld) &&
             node == user.receiver &&
             useCount(user, node) == 1) {
-          interceptedClasses
-              .addAll(backend.getInterceptedClassesOn(user.selector.name));
+          interceptedClasses.addAll(backend.interceptorData
+              .getInterceptedClassesOn(user.selector.name));
         } else if (user is HInvokeSuper &&
             user.isCallOnInterceptor(closedWorld) &&
             node == user.receiver &&
             useCount(user, node) == 1) {
-          interceptedClasses
-              .addAll(backend.getInterceptedClassesOn(user.selector.name));
+          interceptedClasses.addAll(backend.interceptorData
+              .getInterceptedClassesOn(user.selector.name));
         } else {
           // Use a most general interceptor for other instructions, example,
           // is-checks and escaping interceptors.
-          interceptedClasses.addAll(backend.interceptedClasses);
+          interceptedClasses.addAll(backend.interceptorData.interceptedClasses);
           break;
         }
       }
     }
 
     node.interceptedClasses = interceptedClasses;
 
     HInstruction receiver = node.receiver;
 
     // TODO(sra): We should consider each use individually and then all uses
@@ skipping 133 matching lines @@
       instruction = new HInvokeDynamicMethod(
           selector, mask, inputs, node.instructionType, true);
     }
 
     HBasicBlock block = node.block;
     block.addAfter(node, instruction);
     block.rewrite(node, instruction);
     return true;
   }
 }