See <rdar://problem/24060338> Identify problems with textual SIL and fix them
This was never working, but does seem to have recently been fixed on OSX.
It's still failing on Linux:
SIL verification failed: vtable entry for #_AnySequenceBox._prefix!1 must be ABI-compatible
Different conventions for parameter 0
@convention(method) <τ_0_0> (Int, @guaranteed _AnySequenceBox<τ_0_0>) -> @owned _AnySequenceBox<τ_0_0>
@convention(method) <τ_0_0> (@owned @callee_owned (@in τ_0_0) -> (Bool, @error Error), @guaranteed _AnySequenceBox<τ_0_0>) -> (@owned _AnySequenceBox<τ_0_0>, @error Error)
In function:
Removing an abstraction boundary also allowed me to fix a bug where we
could not run long tests in optimized mode, which prevented us from
being able to mark executable tests as long.
* The behavior of `build-script -t` is unchanged.
* `build-script -T` continues to run primary and validation test suite,
but without the long tests.
* `build-script --long-test` runs just the long tests.
* `build-script -T --long-test` runs all tests.
