The results reporting acted weird and hid 2 failures, which were not
reported in the instrumentation result lines
INSTRUMENTATION_RESULT: failed=0
INSTRUMENTATION_RESULT: inconclusive=0
INSTRUMENTATION_RESULT: passed=20134
INSTRUMENTATION_RESULT: run=20466
INSTRUMENTATION_RESULT: nunit2-results-path=/data/data/Xamarin.Android.Bcl_Tests/files/.__override__/TestResults.xml
INSTRUMENTATION_RESULT: skipped=322
INSTRUMENTATION_CODE: -1
and were only reported in the
`TestResult-Xamarin.Android.Bcl_Tests-Release.xml` file.
From `adb logcat` output we can see the crash (same for both failures):
--------- beginning of crash
E/AndroidRuntime( 3826): FATAL EXCEPTION: main
E/AndroidRuntime( 3826): Process: Xamarin.Android.Bcl_Tests, PID: 3826
E/AndroidRuntime( 3826): android.runtime.JavaProxyThrowable: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotSupportedException: Linked away.
E/AndroidRuntime( 3826): at (wrapper managed-to-native) System.Object:__icall_wrapper_ves_icall_object_new_specific (intptr)
E/AndroidRuntime( 3826): at MonoTests.System.Runtime.Remoting.ContextTest..ctor () [0x00000] in <0484cb939a1a4a72be4938b3c08edcaa>:0
E/AndroidRuntime( 3826): at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
E/AndroidRuntime( 3826): at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in <0e1d684ae38a4822aaf6364f06390ad6>:0
E/AndroidRuntime( 3826): --- End of inner exception stack trace ---
That lead us to [`mono/mono/metadata/object.c`][object.c] source,
where `mono_error_set_not_supported (error, "Linked away.");` is
used 6 times.
[object.c]: https://github.com/mono/mono/blob/b263d37/mono/metadata/object.c#L5303
One of the cases was related to:
```c
im = mono_class_get_method_from_name (klass, "CreateProxyForType", 1);
```
That led us to the linked away
`System.Runtime.Remoting.Activation.ActivationServices.CreateProxyForType()`
method.
Update `Xamarin.Android.Bcl-Tests/Resources/LinkerDescription.xml` to
preserve `ActivationServices.CreateProxyForType()`, allowing these
tests to succeed in a `LinkSDKOnly` environment.
f91b5d03ef