FILE /typeOperators.kt
  CLASS INTERFACE IThing
  FUN public fun test1(x: kotlin.Any): kotlin.Boolean
    BLOCK_BODY
      RETURN type=kotlin.Nothing from='test1(Any): Boolean'
        TYPE_OP origin=INSTANCEOF typeOperand=IThing
          GET_VAR 'value-parameter x: Any' type=kotlin.Any origin=null
  FUN public fun test2(x: kotlin.Any): kotlin.Boolean
    BLOCK_BODY
      RETURN type=kotlin.Nothing from='test2(Any): Boolean'
        TYPE_OP origin=NOT_INSTANCEOF typeOperand=IThing
          GET_VAR 'value-parameter x: Any' type=kotlin.Any origin=null
  FUN public fun test3(x: kotlin.Any): IThing
    BLOCK_BODY
      RETURN type=kotlin.Nothing from='test3(Any): IThing'
        TYPE_OP origin=CAST typeOperand=IThing
          GET_VAR 'value-parameter x: Any' type=kotlin.Any origin=null
  FUN public fun test4(x: kotlin.Any): IThing?
    BLOCK_BODY
      RETURN type=kotlin.Nothing from='test4(Any): IThing?'
        TYPE_OP origin=SAFE_CAST typeOperand=IThing
          GET_VAR 'value-parameter x: Any' type=kotlin.Any origin=null
