Consider example: ```interface Foo<T> { ...

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[Pavlo Liapota]

Consider example:

interface Foo<T> {
    val bar: T
}

class IntFoo(
    override val bar: Int
) : Foo<Int>

In bytecode method IntFoo#getBar() will return Integer, so on every property usage

val b: Int = intFoo.bar

value will be boxed and then unboxed.
But JIT compiler should be smart enough to figure it out eventually, so overhead should not be considerable, right?