[Sema] Restrict tests using Swift 6 mode to asserts compilers

Author: xymus

test/Sema/access-level-and-non-resilient-import.swift

@@ -1,6 +1,11 @@
+/// Check diagnostics on a resilient modules importing publicly a
+/// a non-resilient module.
+
 // RUN: %empty-directory(%t)
 // RUN: split-file %s %t
 
+// REQUIRES: asserts
+
 /// Build the libraries.
 // RUN: %target-swift-frontend -emit-module %t/DefaultLib.swift -o %t
 // RUN: %target-swift-frontend -emit-module %t/PublicLib.swift -o %t

test/Sema/access-level-import-inconsistencies.swift

@@ -6,9 +6,11 @@
 ///
 /// Swift 6 case, with default imports as internal.
 /// Don't report any mismatch.
-///
-/// RUN: %empty-directory(%t)
-/// RUN: split-file %s %t
+
+// RUN: %empty-directory(%t)
+// RUN: split-file %s %t
+
+// REQUIRES: asserts
 
 /// Build the library.
 // RUN: %target-swift-frontend -emit-module %t/Lib.swift -o %t