Querying reflection info for `grpc.health.v1.Health` fails

[bkeryan]

This seems to prevent grpcui from working:

> .\grpcui.exe --plaintext localhost:50051
Failed to compute set of methods to expose: Symbol not found: grpc.health.v1.Health

Testing with grpcurl shows that querying reflection info fails for the health service and works for the reflection and LV-registered service:

> .\grpcurl.exe --plaintext localhost:50051 list
grpc.health.v1.Health
grpc.reflection.v1alpha.ServerReflection
helloworld.Greeter
> .\grpcurl.exe --plaintext localhost:50051 describe grpc.health.v1.Health                                                                                                      Failed to resolve symbol "grpc.health.v1.Health": Symbol not found: grpc.health.v1.Health
> .\grpcurl.exe --plaintext localhost:50051 describe grpc.reflection.v1alpha.ServerReflection
grpc.reflection.v1alpha.ServerReflection is a service:
service ServerReflection {
  rpc ServerReflectionInfo ( stream .grpc.reflection.v1alpha.ServerReflectionRequest ) returns ( stream .grpc.reflection.v1alpha.ServerReflectionResponse );
}
> .\grpcurl.exe --plaintext localhost:50051 describe helloworld.Greeter
helloworld.Greeter is a service:
service Greeter {
  rpc SayHello ( .helloworld.HelloRequest ) returns ( .helloworld.HelloReply );
}

This may be related to #452 .

Cc: @kt-jplotzke @jasonmreding

AB#3219728