IrFile /dotQualified.kt
  IrFunction public fun length(/*0*/ s: kotlin.String): kotlin.Int
    IrExpressionBody
      BLOCK type=<no-type> hasResult=false operator=null
        RETURN type=<no-type>
          CALL .<get-length> type=kotlin.Int operator=GET_PROPERTY
            $this: GET_VAR s type=kotlin.String operator=null
  IrFunction public fun lengthN(/*0*/ s: kotlin.String?): kotlin.Int?
    IrExpressionBody
      BLOCK type=<no-type> hasResult=false operator=null
        RETURN type=<no-type>
          WHEN type=kotlin.Int? operator=SAFE_CALL
            if: CALL .EQEQ type=kotlin.Boolean operator=EQEQ
              arg0: GET_VAR s type=kotlin.String? operator=null
              arg1: CONST Null type=kotlin.Nothing? value='null'
            then: CONST Null type=kotlin.Nothing? value='null'
            else: CALL .<get-length> type=kotlin.Int operator=GET_PROPERTY
              $this: GET_VAR s type=kotlin.String? operator=null
