[concurrency] Add REQUIRES: asserts to a test.

Author: gottesmm

test/Concurrency/isolated_parameters.swift

@@ -1,6 +1,7 @@
 // RUN: %target-swift-frontend  -disable-availability-checking -strict-concurrency=complete %s -emit-sil -o /dev/null -verify -verify-additional-prefix complete- -disable-region-based-isolation-with-strict-concurrency
 // RUN: %target-swift-frontend  -disable-availability-checking -strict-concurrency=complete %s -emit-sil -o /dev/null -verify
 
+// REQUIRES: asserts
 // REQUIRES: concurrency
 // REQUIRES: swift_swift_parser