Add deferred loading to Kernel.

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 337 matching lines @@
     return _jumpTargets.putIfAbsent(node, () {
       if (node is ir.LabeledStatement &&
           _jumpTargets.containsKey((node as ir.LabeledStatement).body)) {
         return _jumpTargets[(node as ir.LabeledStatement).body];
       }
       return new KernelJumpTarget(node, this,
           makeContinueLabel: isContinueTarget);
     });
   }
 
+  ir.Procedure get checkDeferredIsLoaded =>
+      kernel.functions[_backend.helpers.checkDeferredIsLoaded];
+
+  TypeMask get checkDeferredIsLoadedType =>
+      TypeMaskFactory.inferredReturnTypeForElement(
+          _backend.helpers.checkDeferredIsLoaded, _globalInferenceResults);
+
   ir.Procedure get createInvocationMirror =>
       kernel.functions[_backend.helpers.createInvocationMirror];
 
   ir.Class get mapLiteralClass =>
       kernel.classes[_backend.helpers.mapLiteralClass];
 
   ir.Procedure get mapLiteralConstructor =>
       kernel.functions[_backend.helpers.mapLiteralConstructor];
 
   ir.Procedure get mapLiteralConstructorEmpty =>
@@ skipping 416 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++;
     }
   }
 }