Unhandled errors not marking sessions as crashed

[bruno-garcia]

sentry-dotnet/src/Sentry/Internal/Hub.cs

Lines 310 to 316 in fc90901

	var e when e.SentryExceptions?.Any(x => !(x.Mechanism?.Handled ?? true)) ?? false =>
	_sessionManager.EndSession(SessionEndStatus.Crashed),
	// Event contains a non-terminal exception -> report error
	// (this might return null if the session has already reported errors before)
	var e when e.Exception is not null || e.SentryExceptions?.Any() == true =>
	_sessionManager.ReportError(),

In the first part it assumes the event already has Mechanism.Handled but that's only set further down on the client when reading from the Exception.Data

So events are only counting as Errored

We need the logic that inspects an instance of an exception for the Mechanism data pulled to an internal method that can be used in the hub while dealing with sessions as well as within the client (where it's currently used)

[bruno-garcia]

Resolved in #1193