Error dotnet reactor code obfuscation

### Steps to Reproduce

1. obfuscate dll with dotreactor cmd line tool
2. project should be added as reference in android project
3. build release version

### Expected Behavior

apk should be generated without any issue

### Actual Behavior
when link behavior is set to "Don't link " no issue with build if link behavior is set either "link sdk assemblies " or "link all assemblies " throws below error

### Environment

```xml

```

### Build Logs

```
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Legacy.targets(5,5): Error XALNK7000: Mono.Linker.MarkException: Error processing method: 'System.Void ::m8DC66491E0B6E2E()' in assembly: 'Libary3.dll' ---> System.NullReferenceException: Object reference not set to an instance of an object
at Mono.Linker.Steps.MarkStep.MarkMethod (Mono.Cecil.MethodReference reference) [0x00009] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Steps.MarkStep.MarkInstruction (Mono.Cecil.Cil.Instruction instruction) [0x00040] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Steps.MarkStep.MarkMethodBody (Mono.Cecil.Cil.MethodBody body) [0x000c2] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Steps.MarkStep.ProcessMethod (Mono.Cecil.MethodDefinition method) [0x001b1] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Steps.MarkStep.ProcessQueue () [0x0001b] in <43053c0ed9b14666903c480c1357d840>:0
--- End of inner exception stack trace ---
at Mono.Linker.Steps.MarkStep.ProcessQueue () [0x00047] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue () [0x0000a] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Steps.MarkStep.Process () [0x000f6] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Steps.MarkStep.Process (Mono.Linker.LinkContext context) [0x0000d] in <43053c0ed9b14666903c480c1357d840>:0
at MonoDroid.Tuner.MonoDroidMarkStep.Process (Mono.Linker.LinkContext context) [0x0000b] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Pipeline.ProcessStep (Mono.Linker.LinkContext context, Mono.Linker.Steps.IStep step) [0x0000d] in <43053c0ed9b14666903c480c1357d840>:0
at Mono.Linker.Pipeline.Process (Mono.Linker.LinkContext context) [0x0000f] in <43053c0ed9b14666903c480c1357d840>:0
at MonoDroid.Tuner.Linker.Run (Mono.Linker.Pipeline pipeline, Mono.Linker.LinkContext context) [0x00000] in <43053c0ed9b14666903c480c1357d840>:0
at MonoDroid.Tuner.Linker.Process (MonoDroid.Tuner.LinkerOptions options, Mono.Linker.ILogger logger, Mono.Linker.LinkContext& context) [0x00071] in <43053c0ed9b14666903c480c1357d840>:0
at Xamarin.Android.Tasks.LinkAssemblies.Execute (Java.Interop.Tools.Cecil.DirectoryAssemblyResolver res) [0x0018f] in <43053c0ed9b14666903c480c1357d840>:0
at Xamarin.Android.Tasks.LinkAssemblies.RunTask () [0x0001b] in <43053c0ed9b14666903c480c1357d840>:0
at Microsoft.Android.Build.Tasks.AndroidTask.Execute () [0x00000] in /Users/runner/work/1/s/xamarin-android/external/xamarin-android-tools/src/Microsoft.Android.Build.BaseTasks/AndroidTask.cs:17 (XALNK7000) (OfuscationExample.Android)
```