.Net assumes that Negotiate LSA package has index 0: https://github.com/dotnet/runtime/blob/f1d2be8f443a599a142506d622a35e1c2e683...
-- v4: secur32/tests: Add some tests for "Negotiate" LSA package. secur32: Add a better stub for LsaApCallPackageUntrusted(NegGetCallerName). secur32: Convert "Negotiate" to an LSA package.