Allow Platform.executable for JIT app snapshots.

tests/standalone/io/https_unauthorized_test.dart

Index: tests/standalone/io/https_unauthorized_test.dart
diff --git a/tests/standalone/io/https_unauthorized_test.dart b/tests/standalone/io/https_unauthorized_test.dart
index f415a83787508c808f29d6dcdeb1bb4d7c73ba12..6bded129ef1bc7910094987b4bb6ca086866e9cf 100644
--- a/tests/standalone/io/https_unauthorized_test.dart
+++ b/tests/standalone/io/https_unauthorized_test.dart
@@ -4,6 +4,10 @@
 //
 // OtherResources=certificates/server_chain.pem
 // OtherResources=certificates/server_key.pem
+// OtherResources=certificates/untrusted_server_chain.pem
+// OtherResources=certificates/untrusted_server_key.pem
+// OtherResources=certificates/trusted_certs.pem
+// OtherResources=https_unauthorized_client.dart
 
 // This test verifies that secure connections that fail due to
 // unauthenticated certificates throw exceptions in HttpClient.
@@ -38,9 +42,7 @@ Future<SecureServerSocket> runServer() {
 }
 
 void main() {
-  var clientScript = Platform.script
-                             .resolve('https_unauthorized_client.dart')
-                             .toFilePath();
+  var clientScript = localFile('https_unauthorized_client.dart');
   Future clientProcess(int port) {
     return Process.run(Platform.executable,
         [clientScript, port.toString()])