This reverts commit 231fb5e054.
This test was failing the last time we updated the stable branches
of LLVM/Clang so it was disabled. No one remembers what was the
problem, so try reenabling it to see if anything breaks.
We were using a precondition which crashes the program when invalid input is
provided. We want to provide a way to gracefully check and handle invalid input
or shutdown the program if necessary.
SR-1930
