[llvm] [LLVM][CMake] Build examples for llvm-test-depends (PR #171998)

[Alexis Engelke via llvm-commits]

aengelke wrote:

aix-ppc64 is also broken, there's neither JIT nor plugin support. Excluded AIX in 249acb6f87969d3227e100b20cdc4f3556dac9b4.

https://github.com/llvm/llvm-project/pull/171998