You should also change the client code to actually use these status subclasses. I would recommend adding a static factory function to BadStatus that creates the correct subclass based on the code.

test this please

test failures on:

• linux PR: https://grpc-testing.appspot.com/job/gRPC_pull_requests_linux/1200/
• tsan c++ PR: https://grpc-testing.appspot.com/job/gRPC_pull_requests_tsan_cpp/538/
• interop PR: https://grpc-testing.appspot.com/job/gRPC_interop_pull_requests/9866/
• performance PR https://grpc-testing.appspot.com/job/gRPC_performance_pull_requests/7769/ (error on report upload)

I believe these tests were last ran before the fix-it was done though, re-running the tests

jenkins: test this please

failures on the following the new and known tests:

• performance PR: known issue in performance tests failing on v1.0.x w/o individual test failures #9047
• interop PR: known issue in build_python.sh: line 161: 2794 Segmentation fault (core dumped) #9092
• tsan c++ PR: known issue in qps_openloop_test failing on tsan on v1.0.x #9046
• tsan c++ PR: new issue aggregate_tests run_tests_c++_linux_tsan failure #9117
• linux PR: new issue build_python.sh script is downloading packages from PyPI #9116