KT-27747 - Suggest lambda in auto-completion on objects with invoke operator that accepts a lambda parameter

[eskatos]

See https://youtrack.jetbrains.com/issue/KT-27747

[JLLeitschuh]

I commented this in the above, but this should also be considered:

class Bar {}
operator fun Bar.invoke(block: Bar.() -> Unit): Unit = TODO()

val bar = Bar()

fun main(args: Array<String>) {
    ba<caret> // This should also suggest a lambda here as well.
}

[eskatos]

KT-27747 now has 1.3.40 as a target \o/