Swift 5.9 includes built in crash reporting, printing stack traces,
libraries, and registers to stdout/err.
https://www.swift.org/blog/swift-5.9-backtraces/
As (Core)Foundation is written in Swift nowadays, we get this feature
for free even in our "C++" apps, as we always link to CoreFoundation.
To enable the feature the binary needs the com.apple.security.get-task-allow
entitlement, so we add it for all our tests automatically.
The final piece is to run the tests with SWIFT_BACKTRACE=enable=yes,
but we'll do this in our CI provisioning, as setting it from within
testlib doesn't seem to work.
Pick-to: 6.9 6.8
Change-Id: I31090efee06460f45522093e17f900e76590b282
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
9bebdc97f1