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