In commit 25977e177b (apple: add preliminary visionOS support, 2023-06-22)
we added visionOS based on a Xcode 15 beta version, but the Xcode 15.0
final release did not include it. Disable the test cases until we can
improve the condition to detect availability.
Issue: #25266
With Xcode 14 support for the Legacy Build System has been removed
and the BuildSystemType in the WorkspaceSettings is ignored.
If CMake still generates projects targeted to the Lecacy Build
System the build preparation phase will likely fail because Xcode
for example misses any declared outputs from script invocations.
This is a hard to debug problem and CMake should reject the invalid
configuration instead.
The `RunCMake.XcodeProject` has many cases and occasionally fails
due to timeout. Move iOS and other device-specific cases to a new
`RunCMake.XcodeProject-Device` test.
