glretrace: Replay crashed glXMakeCurrent calls without crashing.
glretrace: Replay crashed glXMakeCurrent calls without crashing.

Fixes https://github.com/apitrace/apitrace/issues/445

apitrace/apitrace,apitrace/apitrace,schulmar/apitrace,schulmar/apitrace,trtt/apitrace,schulmar/apitrace,apitrace/apitrace,trtt/apitrace,trtt/apitrace,trtt/apitrace,apitrace/apitrace,schulmar/apitrace,schulmar/apitrace,trtt/apitrace