class A { constructor(x: Int) { } constructor(x: Int, y: String) { } } val v = A(1, "abc") Resolved call: Resulting descriptor: constructor A(x: Int, y: String) defined in A Explicit receiver kind = NO_EXPLICIT_RECEIVER Dispatch receiver = NO_RECEIVER Extension receiver = NO_RECEIVER Value arguments mapping: SUCCESS x : Int = 1 SUCCESS y : String = "abc"