Load service isolate from the kernel binary.

tools/testing/dart/compiler_configuration.dart

Index: tools/testing/dart/compiler_configuration.dart
diff --git a/tools/testing/dart/compiler_configuration.dart b/tools/testing/dart/compiler_configuration.dart
index c6367d849ccc0b91a6487a3e8fb81970b61c7181..24d5fe988b028f590ebf7ea9e41493a9d4b49825 100644
--- a/tools/testing/dart/compiler_configuration.dart
+++ b/tools/testing/dart/compiler_configuration.dart
@@ -203,6 +203,7 @@ class NoneCompilerConfiguration extends CompilerConfiguration {
     if (useDfe) {
       args.add('--dfe=${buildDir}/gen/kernel-service.dart.snapshot');
       args.add('--platform=${buildDir}/patched_sdk/platform.dill');
+      args.add('--vmservice_io=${buildDir}/patched_sdk/vmservice_io.dill');
     }
     if (isChecked) {
       args.add('--enable_asserts');
@@ -642,6 +643,7 @@ class PrecompilerCompilerConfiguration extends CompilerConfiguration {
     if (useDfe) {
       args.add('--dfe=utils/kernel-service/kernel-service.dart');
       args.add('--platform=${buildDir}/patched_sdk/platform.dill');
+      args.add('--vmservice_io=${buildDir}/patched_sdk/vmservice_io.dill');
     }
     args.add("--snapshot-kind=app-aot");
     if (useBlobs) {