Add regression test for #128 (fixed in ab6774ce)

Tests run at HEAD (35719d52):
```
$ bazel test $(bazel query 'filter(".*getdents.*", //test/syscalls:all)')
<snip>
//test/syscalls:getdents_test_native                                     PASSED in 0.3s
//test/syscalls:getdents_test_runsc_ptrace                               PASSED in 4.9s
//test/syscalls:getdents_test_runsc_ptrace_overlay                       PASSED in 4.7s
//test/syscalls:getdents_test_runsc_ptrace_shared                        PASSED in 5.2s
//test/syscalls:getdents_test_runsc_kvm                                  FAILED in 4.0s
```

Tests run at ab6774ce~1 (6f933a93):
```
$ bazel test $(bazel query 'filter(".*getdents.*", //test/syscalls:all)')
//test/syscalls:getdents_test_native                                     PASSED in 0.2s
//test/syscalls:getdents_test_runsc_kvm                                  FAILED in 4.2s
  /usr/local/google/home/brb/.cache/bazel/_bazel_brb/967240a6aae7d353a221d73f4375e038/execroot/__main__/bazel-out/k8-fastbuild/testlogs/test/syscalls/getdents_test_runsc_kvm/test.log
//test/syscalls:getdents_test_runsc_ptrace                               FAILED in 5.3s
  /usr/local/google/home/brb/.cache/bazel/_bazel_brb/967240a6aae7d353a221d73f4375e038/execroot/__main__/bazel-out/k8-fastbuild/testlogs/test/syscalls/getdents_test_runsc_ptrace/test.log
//test/syscalls:getdents_test_runsc_ptrace_overlay                       FAILED in 4.9s
  /usr/local/google/home/brb/.cache/bazel/_bazel_brb/967240a6aae7d353a221d73f4375e038/execroot/__main__/bazel-out/k8-fastbuild/testlogs/test/syscalls/getdents_test_runsc_ptrace_overlay/test.log
//test/syscalls:getdents_test_runsc_ptrace_shared                        FAILED in 5.2s
  /usr/local/google/home/brb/.cache/bazel/_bazel_brb/967240a6aae7d353a221d73f4375e038/execroot/__main__/bazel-out/k8-fastbuild/testlogs/test/syscalls/getdents_test_runsc_ptrace_shared/test.log
```

(I think all runsc_kvm tests are broken on my machine -- I'll rerun them
if you can point me at the documentation to set it up)

0 files changed, 0 insertions, 0 deletions