Do not crash on IsCurrent checks #14089
Merged
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What does the pull request do?
EglContext.IsCurrent currently throws an exception, if context was already lost. This behavior doesn't seem to be replicated in other IGlContext implementations, and causes issues, when surface is being disposed after context was disposed.
After this change, context.EnsureCurrent will still crash with PlatformGraphicsContextLostException, but rendering backend can handle that exception properly.
Fixed issues
Fixes #13919
Fixes #14077