Use elements/types.dart in codegen.dart

pkg/compiler/lib/src/ssa/kernel_impact.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:kernel/ast.dart' as ir;
 
 import '../common.dart';
 import '../common/names.dart';
 import '../compiler.dart';
 import '../constants/expressions.dart';
@@ skipping 313 matching lines @@
             astAdapter.getNativeBehaviorForJsEmbeddedGlobalCall(node));
         break;
       case ForeignKind.JS_INTERCEPTOR_CONSTANT:
         if (node.arguments.positional.length != 1 ||
             node.arguments.named.isNotEmpty) {
           astAdapter.reporter.reportErrorMessage(CURRENT_ELEMENT_SPANNABLE,
               MessageKind.WRONG_ARGUMENT_FOR_JS_INTERCEPTOR_CONSTANT);
         }
         ir.Node argument = node.arguments.positional.first;
         if (argument is ir.TypeLiteral && argument.type is ir.InterfaceType) {
-          impactBuilder.registerTypeUse(
-              new TypeUse.instantiation(astAdapter.getDartType(argument.type)));
+          InterfaceType type = astAdapter.getDartType(argument.type);
+          impactBuilder.registerTypeUse(new TypeUse.instantiation(type));
         }
         break;
       case ForeignKind.NONE:
         break;
     }
   }
 
   @override
   void visitStaticGet(ir.StaticGet node) {
     ir.Member target = node.target;
@@ skipping 221 matching lines @@
     Element target = astAdapter.getElement(node.target).declaration;
     impactBuilder.registerStaticUse(new StaticUse.superConstructorInvoke(
         target, astAdapter.getCallStructure(node.arguments)));
   }
 
   // TODO(johnniwinther): Make this throw and visit child nodes explicitly
   // instead to ensure that we don't visit unwanted parts of the ir.
   @override
   void defaultNode(ir.Node node) => node.visitChildren(this);
 }