Fix security_context_argument_test

tests/standalone/io/security_context_argument_test.dart

Index: tests/standalone/io/security_context_argument_test.dart
diff --git a/tests/standalone/io/security_context_argument_test.dart b/tests/standalone/io/security_context_argument_test.dart
index a964f8c690d042173af3cd52ebbb6111e540860f..60577b245751a89ed33953db6afaf957cdd86a22 100644
--- a/tests/standalone/io/security_context_argument_test.dart
+++ b/tests/standalone/io/security_context_argument_test.dart
@@ -32,8 +32,8 @@ void testUsePrivateKeyArguments() {
     Expect.throws(() => c.usePrivateKeySync(1), argumentOrTypeError);
     Expect.throws(() => c.usePrivateKeySync(null), argumentError);
     Expect.throws(() => c.usePrivateKeySync(
-        localFile('certificates/server_key_oops.pem'), password: 3),
-        fileSystemException);
+        localFile('certificates/server_key.pem'), password: 3),
+        argumentOrTypeError);
     c.usePrivateKeySync(
         localFile('certificates/server_key.pem'), password: "dartdart");
 }