Add REQUIRES: asserts to the attr_inlinable_typealias_swift6 test case.
Add REQUIRES: asserts to the attr_inlinable_typealias_swift6 test case.

Resolves rdar://97792331

apple/swift,apple/swift,benlangmuir/swift,apple/swift,glessard/swift,glessard/swift,benlangmuir/swift,JGiola/swift,JGiola/swift,glessard/swift,JGiola/swift,roambotics/swift,roambotics/swift,JGiola/swift,benlangmuir/swift,glessard/swift,benlangmuir/swift,JGiola/swift,apple/swift,apple/swift,roambotics/swift,roambotics/swift,apple/swift,benlangmuir/swift,roambotics/swift,glessard/swift,roambotics/swift,JGiola/swift,glessard/swift,benlangmuir/swift