Failing Torsten test under cmdstan/stan/src/test/unit/parser

[kyleam]

Running the src/test/unit unit tests from the cmdstan/stan directory fails.
The only Torsten-specific file under cmdstan/stan/src/test/unit/ is parser/torsten_functions_test.cpp. It fails when running src/test/unit tests under cmdstan/stan/.

make -j15 test/test-models/good/mcmc/hmc/common/gauss.hpp test/test-models/good/mcmc/hmc/common/gauss3D.hpp test/test-models/good/mcmc/hmc/common/gauss3D.hpp test/test-models/good/mcmc/hmc/common/gauss3D.hpp test/test-models/good/mcmc/hmc/common/gauss3D.hpp test/test-models/good/mcmc/hmc/common/gauss3D.hpp test/test-models/good/mcmc/hmc/integrators/gauss.hpp test/test-models/good/mcmc/hmc/integrators/command.hpp test/test-models/good/mcmc/hmc/integrators/gauss.hpp test/test-models/good/mcmc/hmc/integrators/command.hpp test/test-models/good/mcmc/hmc/hamiltonians/funnel.hpp test/test-models/good/mcmc/hmc/hamiltonians/funnel.hpp
[... 114 lines ...]
g++ -std=c++1y -pthread -D_REENTRANT -Wno-sign-compare -Wno-ignored-attributes      -I lib/stan_math/lib/tbb_2020.3/include    -O3 -I src -I . -I lib/rapidjson_1.1.0/ -I lib/stan_math/ -I lib/stan_math/lib/eigen_3.4.0 -I lib/stan_math/lib/boost_1.78.0 -I lib/stan_math/lib/sundials_6.1.1/include -I lib/stan_math/lib/sundials_6.1.1/src/sundials -I lib/stan_math/lib/benchmark_1.5.1/googletest/googletest/include -I lib/stan_math/lib/benchmark_1.5.1/googletest/googletest -I lib/stan_math/lib/benchmark_1.5.1/googletest/googletest/include -I lib/stan_math/lib/benchmark_1.5.1/googletest/googletest -DBOOST_MPL_CFG_NO_PREPROCESSED_HEADERS -DBOOST_MPL_LIMIT_LIST_SIZE=30      -DBOOST_DISABLE_ASSERTS         -DGTEST_HAS_PTHREAD=0 -DGTEST_HAS_PTHREAD=0  -c src/test/unit/io/serializer_test.cpp -o test/unit/io/serializer_test.o
src/test/unit/parser/torsten_functions_test.cpp:2:10: fatal error: test/unit/lang/utility.hpp: No such file or directory
    2 | #include <test/unit/lang/utility.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [make/tests:63: test/unit/parser/torsten_functions_test.o] Error 1
make: *** Waiting for unfinished jobs....
[... 42 lines ...]
test/unit/optimization/bfgs_linesearch_test failed
exit now (09/06/24 14:54:34 EDT)
t/optimization/bfgs_test test/unit/optimization/bfgs_minimizer_test test/unit/optimization/lbfgs_update_test test/unit/optimization/bfgs_linesearch_test

The referenced file (test/unit/lang/utility.hpp) was renamed in stan-dev/stan's e7d7c210f (move lang tests out so they dont run, 2020-07-04) and then removed in 40a92dd37 (remove stanc2, 2021-01-27).

So it looks like this wasn't updated for the stanc3 transition. Perhaps it can just be removed entirely.

[yizhang-yiz]

The test is removed in #63.

[kyleam]

Thanks @yizhang-yiz. Closing given gh-63 has been merged.