Runtime build on Loongarch failed

I disable building Crossgen in the runtime repo and try to build on Loongarch and this is what issue I'm having

```
Unhandled exception. System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
at Mono.Collections.Generic.Collection`1.get_Item(Int32 index)
at ILLink.Shared.TrimAnalysis.FlowAnnotations.BuildTypeAnnotations(TypeDefinition type)
at ILLink.Shared.TrimAnalysis.FlowAnnotations.GetAnnotations(TypeDefinition type)
at Mono.Linker.Dataflow.DynamicallyAccessedMembersTypeHierarchy.ProcessMarkedTypeForDynamicallyAccessedMembersHierarchy(TypeDefinition type)
at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
at Mono.Linker.Steps.MarkStep.MarkField(FieldDefinition field, DependencyInfo& reason, MessageOrigin& origin)
at Mono.Linker.Steps.MarkStep.MarkFields(TypeDefinition type, Boolean includeStatic, DependencyInfo& reason, Boolean markBackingFieldsOnlyIfPropertyMarked)
at Mono.Linker.Steps.MarkStep.ApplyPreserveInfo(TypeDefinition type)
at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
at Mono.Linker.Steps.MarkStep.ProcessMarkedPending()
at Mono.Linker.Steps.MarkStep.Initialize()
at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)
at Mono.Linker.Pipeline.Process(LinkContext context)
at Mono.Linker.Driver.Run(ILogger customLogger)
at Mono.Linker.Driver.Main(String[] args)
```

Any ideas?

/cc @shushanhf