[gardening] Could not find a command named <...>.out.jitsnapshot

[dcharkes]

Unexpected exit code 64
DART_CONFIGURATION=DebugX64 out/DebugX64/dart --ignore-unrecognized-flags --packages=/b/s/w/ir/.packages /b/s/w/ir/out/DebugX64/generated_compilations/app_jitk-linux-debug-x64/multitest_ffi_2_vmspecific_leaf_call_test_02/out.jitsnapshot

Could not find a command named "/b/s/w/ir/out/DebugX64/generated_compilations/app_jitk-linux-debug-x64/multitest_ffi_2_vmspecific_leaf_call_test_02/out.jitsnapshot".

https://logs.chromium.org/logs/dart/buildbucket/cr-buildbucket.appspot.com/8846304289428256448/+/u/vm_tests_shard_5/task_stdout_stderr:_vm_tests_shard_5

This is surfacing as an infra failure on the app-kernel-linux-debug-x64 bot, hiding any further status changes.

Test added in 4d50558

We might want to skip the test on the configuration until we figure out what is going on, so that we don't hide further failures under an infra failure.

cc @cskau-g

This is indeed failing for app_jitk-*-debug-*:

$ tools/test.py --build -n app_jitk-linux-debug-x64 ffi_2/vmspecific_leaf_call_test

--- Command "app_jit" (took 03.000033s):
DART_CONFIGURATION=DebugX64 out/DebugX64/dart --snapshot=/.../out/DebugX64/generated_compilations/app_jitk-linux-debug-x64/multitest_ffi_2_vmspecific_leaf_call_test_02/out.jitsnapshot --snapshot-kind=app-jit [...] /.../out/DebugX64/generated_tests/ffi_2/vmspecific_leaf_call_test_02.dart

exit code:
0

stderr:
Could not find a command named "/.../out/DebugX64/generated_compilations/app_jitk-linux-debug-x64/multitest_ffi_2_vmspecific_leaf_call_test_02/out.jitsnapshot".

The test is expected to crash during runtime, and we set up a special handler to catch this during testing.
Though during app_jit this appears to disrupt the snapshot generation (though the command itself exits with code 0), which means the next run step will fail due to the expected snapshot file missing.

I don't immediately know what we can do about this situation, so for now I suggest we approve ffi{,_2}/vmspecific_leaf_call_test/{02,03} on app_jitk-*-debug-*.

201185 adds a Skip for the affected tests.