Fix test case

Author: aschwaighofer

test/SPI/warn_on_ineffective_spi_import.swift

@@ -3,7 +3,7 @@
 // RUN: %empty-directory(%t)
 
 /// Compile the SPI lib.
-// RUN: %target-swift-frontend -enable-experimental-prespecialization -emit-module %S/Inputs/spi_helper.swift -module-name SPIHelper -emit-module-path %t/SPIHelper.swiftmodule -emit-module-interface-path %t/SPIHelper.swiftinterface -emit-private-module-interface-path %t/SPIHelper.private.swiftinterface -enable-library-evolution -swift-version 5 -parse-as-library
+// RUN: %target-swift-frontend -emit-module %S/Inputs/spi_helper.swift -module-name SPIHelper -emit-module-path %t/SPIHelper.swiftmodule -emit-module-interface-path %t/SPIHelper.swiftinterface -emit-private-module-interface-path %t/SPIHelper.private.swiftinterface -enable-library-evolution -swift-version 5 -parse-as-library
 
 /// Reading from swiftmodule, no warning.
 // RUN: %target-swift-frontend -typecheck %s -I %t