dart2js-kernel: Implement JS_CALL_IN_ISOLATE

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

Index: pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
diff --git a/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart b/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
index 3bcb363e0cf2ca4b0025d770c52dbecd45b7ea36..7b4ab9b7967e3109093ef86a6f706a3b3feb1f8c 100644
--- a/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
+++ b/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
@@ -378,6 +378,9 @@ class KernelAstAdapter {
   ir.Procedure get currentIsolate =>
       kernel.functions[_backend.helpers.currentIsolate];
 
+  ir.Procedure get callInIsolate =>
+      kernel.functions[_backend.helpers.callInIsolate];
+
   bool isInForeignLibrary(ir.Member member) =>
       _backend.isForeign(getElement(member));