Replace ChOp skipif with a fail-fast precomp (#28954)

Replace the ChOp testing skipif with a precomp that exits with error if
cloning or patching fails, rather than just skipping the test.

I think this is appropriate because we shouldn't have very frequent
failures now that we have cached reference repos to clone with, so we
can lean towards not silencing an issue.

All differences between new precomp and old skipif:
- Uses reference repo at standard path for cloning if available.
- Exits with error on failed commands (`set -e`), rather than skipping
test.
- Output is direct to stdout and stderr rather than redirecting to a log
file.
- Increased verbosity with `set -x`.

[reviewed by @benharsh , thanks!]

Testing:
- [x] ChOp tests in `./util/cron/test-gpu-ex-cuda-12.ofi.bash` config
pass

Author: arifthpe

test/gpu/native/studies/chop/queens_GPU_CPU_single_node.precomp

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+set -ex
+
+CWD=$(cd $(dirname ${BASH_SOURCE[0]}) ; pwd)
+CHOP_BRANCH=main
+CHOP_URL=${CHOP_URL:-https://github.com/tcarneirop/ChOp.git}
+CHOP_BRANCH=${CHOP_BRANCH:-main}
+
+# Clone ChOp
+rm -rf ChOp
+git clone ${CHOP_URL} --reference-if-able "${REPO_CACHE_PATH:-/missing}/chapel.git" --branch=${CHOP_BRANCH} --depth=1
+
+# Apply patches, if any
+for p in $(find patches -name "*patch"); do
+  git -C ChOp apply ../$p;
+done