prepare for native-tls 0.2

[aep]

this well be needed once native-tls 0.2 gets released

sfackler/rust-native-tls#98

[mehcode]

Why is danger_connect_async_without_providing_domain_for_certificate_verification_and_server_name_indication removed?

[aep]

it's removed in rust-native-tls. the functionality is moving one up in the stack,
see hyperium/hyper-tls@8370cde#diff-31bbf71c54bca98a0ae3d40a327af940R103

[aep]

giving up fixing the osx tests for now. will revisit them when native-tls releases

[sfackler]

native-tls 0.2 is released!

[carllerche]

This would be a breaking change, correct?

[sfackler]

Yep

[tikue]

Any chance of getting this merged soon?

[theduke]

Also need this, this blocks upgrading tokio-imap.

I guess someone needs to figure out why the OS X build is failing (compilation fails due to missing function).
I can't since I don't have a mac.

[djc]

I have a branch that passes the tests on macOS:

https://github.com/djc/tokio-tls/tree/native-tls-0.2

@aep maybe pull my changes in your PR? Feel free to just squash my changes into yours.

[aep]

@djc some of the error messages are still different on osx apparantly

[djc]

Oh, I guess the error message may have changed between macOS 10.12 (on Travis) and 10.13 (which I have locally). I've pushed another commit to my branch that allows either version of the error message -- this seems a bit crappy perhaps, but it seems like an okay solution for the tests here.

[djc]

(I talked to Carl about this PR, and he mentioned he wants to merge #45 instead, which include these changes along with what's necessary to support modern tokio.)

[izderadicka]

#45 was merged which contains also changes from this PR. So I think this one can be closed.

[carllerche]

This got done as part of #45.