Don't report when entries with multiple conditions and trailing comma

[AfzalivE]

Update to ConsistentWhenEntries rule to allow when-blocks with multiple conditions in one when-entry with trailing commas.

Before, this was invalid but should be valid.

val a = listOf<Int>()
val b = when(a) {
    is ArrayList,
    is MutableList,
    -> true
    else -> false
}

Before, this was valid but should be invalid.

val a = listOf<Int>()
val b = when(a) {
    is ArrayList,
    is MutableList,
    -> {
        true
    }
    else -> false
}

[rastislavvasko]

Thanks for the fix! 👌

[AfzalivE]

Thanks for the review!