// ISSUE: KT-54400 // CHECK_TYPE_WITH_EXACT fun test() { val buildee = build { typeVariableMutableProperty = "" } // exact type equality check — turns unexpected compile-time behavior into red code // considered to be non-user-reproducible code for the purposes of these tests checkExactType>(buildee) } class Buildee { var typeVariableMutableProperty: TV get() = storage set(value) { storage = value } private var storage: TV = null!! } fun build(instructions: Buildee.() -> Unit): Buildee { return Buildee().apply(instructions) }