There should be a

inline fun <T> T?.println(): T? {
    println(this)
    return this
}

so I dont have to move my caret around when trying to debug

How you will print empty line, if such function would exist?

println()

class A {
    fun test() {
        println()
    }
}

Does it print empty line or

A

?

I see... so in this case you can't print an empty line without using the full qualified name...

Yep

Do you have any usecases except debugging?

There's already an idiomatic pattern to do this btw:

objectOrLongExpression.also(::println).continueMethodChain()

In general,

also

is used to perform some side effect and then continue a method chain.

hmm I never thought about it that way

there's also the IntelliJ suffix template stuff