Merge pull request swiftlang#68496 from gottesmm/pr-9206c7ba4a6be108096a07de154fa25afe5cf330

[send-non-sendable] Add an extra run/diagnostic checks to main send-non-sendable test for when the mode is disabled.

Author: gottesmm

lib/SILOptimizer/Mandatory/SendNonSendable.cpp

@@ -30,8 +30,6 @@
 
 using namespace swift;
 
-#pragma clang optimize off
-
 //===----------------------------------------------------------------------===//
 //                              MARK: Utilities
 //===----------------------------------------------------------------------===//