I get `Type parameter T is declared as 'out' but o...

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[mekarthedev]

I get Type parameter T is declared as 'out' but occurs in 'in' position in type T on line override fun receive(t: T) {

[ilya.gorbunov]

I've simplified this example a bit and submitted the problem as https://youtrack.jetbrains.com/issue/KT-23428