PER, UPER: Eliminate compiler warning for SeqPrim.asn1
PER, UPER: Eliminate compiler warning for SeqPrim.asn1

The BEAM compiler now warns more aggressively for expressions whose
values are not used. For example, the generated Erlang code for
the following ASN.1 code will now cause a warning:

  Seq ::= SEQUENCE {
    ...,
    os OCTET STRING (SIZE (17000..30000))
  }

The generated Erlang code looks similar to the following:

  Enc9@bin = iolist_to_binary(Enc9@output),
  Enc9@len = byte_size(Enc9@bin),
  [align|encode_fragmented(Enc9@bin, 8)]

The variable Enc9@len is not used and the BEAM compiler will
complain that the value returned from the byte_size/1 call is
not used.

Improve the optimization of the intermediate code to eliminate
the assignment to the unused variable.

Teino1978-Corp/otp,uabboli/otp,schlagert/otp,isvilen/otp,uabboli/otp,lemenkov/otp,johanclaesson/otp,erlang/otp,msantos/otp,jj1bdx/otp,rlipscombe/otp,Teino1978-Corp/erlang-otp,sdebnath/otp,beni55/otp,vladdu/otp,sdebnath/otp,ahmedshafeeq/otp,basho/otp,RGafiyatullin/otp,paulcager/otp,fenollp/otp,c-rack/otp,schlagert/otp,jj1bdx/otp,hairyhum/otp,GinjaNinja32/otp,potatosalad/otp,tuncer/otp,kvakvs/otp,RoadRunnr/otp,dgud/otp,cnbin/otp,jamesruan/otp,potatosalad/otp,aboroska/otp,electricimp/otp,Teino1978-Corp/otp,beni55/otp,emile/otp,platinumthinker/otp,krishnakumar4a4/otp,electricimp/otp,release-project/otp,vic/otp,ferd/otp,ahmedshafeeq/otp,theom/otp,hairyhum/otp,jj1bdx/otp,Teino1978-Corp/erlang-otp,beni55/otp,RichMorin/otp,release-project/otp,marquisthunder/otp,jemsbhai/otp,goertzenator/otp,dumbbell/otp,ader1990/otp,ferd/otp,vladdu/otp,bugs-erlang-org/otp,schlagert/otp,Teino1978-Corp/otp,lemenkov/otp,cobusc/otp,riverrun/otp,falkevik/otp,GinjaNinja32/otp,emacsmirror/erlang,getong/otp,potatosalad/otp,vic/otp,yangchengjian/otp,falkevik/otp,cnbin/otp,haguenau/otp,kvakvs/otp,schlagert/otp,electricimp/otp,GinjaNinja32/otp,lrascao/otp,g-andrade/otp,paulcager/otp,mikpe/otp,jinshana/otp,uabboli/otp,ader1990/otp,potatosalad/otp,krishnakumar4a4/otp,paulcager/otp,jemsbhai/otp,tuncer/otp,c-rack/otp,lucafavatella/otp,bjorng/otp,lrascao/otp,Teino1978-Corp/otp,tuncer/otp,emacsmirror/erlang,RJ/otp,hairyhum/otp,johanclaesson/otp,saleyn/otp,potatosalad/otp,Teino1978-Corp/erlang-otp,psyeugenic/otp,emile/otp,theom/otp,jj1bdx/otp,sammoth-wazoku/otp,basho/otp,aboroska/otp,RJ/otp,lemenkov/otp,yangchengjian/otp,dumbbell/otp,aboroska/otp,lrascao/otp,goertzenator/otp,massemanet/otp,dumbbell/otp,beni55/otp,jinshana/otp,psyeugenic/otp,jemsbhai/otp,neeraj9/otp,RJ/otp,RichMorin/otp,johanclaesson/otp,weisslj/otp,dumbbell/otp,erlang/otp,dgud/otp,bugs-erlang-org/otp,benoitc/otp-1,psyeugenic/otp,bsmr-erlang/otp,mujiatong/otp,emacsmirror/erlang,benoitc/otp-1,bugs-erlang-org/otp,saleyn/otp,bjorng/otp,vic/otp,falkevik/otp,emile/otp,uabboli/otp,goertzenator/otp,RichMorin/otp,emacsmirror/erlang,RaimoNiskanen/otp,massemanet/otp,klarna/otp,lhslll/otp,tuncer/otp,haguenau/otp,sammoth-wazoku/otp,jinshana/otp,VincentHHL/otp,isvilen/otp,cobusc/otp,bernardd/otp,RoadRunnr/otp,lightcyphers/otp,hairyhum/otp,msantos/otp,goertzenator/otp,isvilen/otp,ahmedshafeeq/otp,platinumthinker/otp,RaimoNiskanen/otp,sitexa/otp,paulcager/otp,marquisthunder/otp,enikki/otp,stolen/otp,weisslj/otp,riverrun/otp,stolen/otp,enikki/otp,bugs-erlang-org/otp,stolen/otp,bsmr-erlang/otp,RGafiyatullin/otp,matwey/otp,bsmr-erlang/otp,mujiatong/otp,jj1bdx/otp,gjaldon/otp,emacsmirror/erlang,NOMORECOFFEE/otp,lightcyphers/otp,cobusc/otp,psyeugenic/otp,RGafiyatullin/otp,beni55/otp,getong/otp,basho/otp,g-andrade/otp,marquisthunder/otp,dgud/otp,paulcager/otp,marquisthunder/otp,c-rack/otp,release-project/otp,getong/otp,sdebnath/otp,palas/otp,RichMorin/otp,VincentHHL/otp,ahmedshafeeq/otp,krishnakumar4a4/otp,RGafiyatullin/otp,lianghaivv/otp,fenollp/otp,massemanet/otp,cnbin/otp,cnbin/otp,bjorng/otp,g-andrade/otp,mikpe/otp,jamesruan/otp,basho/otp,lightcyphers/otp,aboroska/otp,potatosalad/otp,potatosalad/otp,bjorng/otp,RJ/otp,RJ/otp,lemenkov/otp,saleyn/otp,uabboli/otp,saleyn/otp,paulcager/otp,RoadRunnr/otp,bsmr-erlang/otp,NOMORECOFFEE/otp,VincentHHL/otp,aboroska/otp,GinjaNinja32/otp,erlang/otp,sammoth-wazoku/otp,fenollp/otp,lantti/otp,haguenau/otp,stolen/otp,RoadRunnr/otp,weisslj/otp,lantti/otp,lantti/otp,rlipscombe/otp,jemsbhai/otp,c-rack/otp,vladdu/otp,awetzel/otp,VincentHHL/otp,massemanet/otp,msantos/otp,potatosalad/otp,c-rack/otp,jamesruan/otp,fenollp/otp,palas/otp,RichMorin/otp,RoadRunnr/otp,RoadRunnr/otp,mujiatong/otp,GinjaNinja32/otp,g-andrade/otp,vinoski/otp,neeraj9/otp,sammoth-wazoku/otp,klarna/otp,derek121/otp,mikpe/otp,RaimoNiskanen/otp,benoitc/otp-1,cobusc/otp,vladdu/otp,lhslll/otp,emacsmirror/erlang,falkevik/otp,legoscia/otp,dumbbell/otp,NOMORECOFFEE/otp,VincentHHL/otp,g-andrade/otp,RGafiyatullin/otp,bsmr-erlang/otp,RaimoNiskanen/otp,rlipscombe/otp,jemsbhai/otp,lucafavatella/otp,ferd/otp,massemanet/otp,dgud/otp,electricimp/otp,entropiae/otp,lrascao/otp,paulcager/otp,klarna/otp,jemsbhai/otp,goertzenator/otp,haguenau/otp,electricimp/otp,falkevik/otp,RoadRunnr/otp,yangchengjian/otp,msantos/otp,dgud/otp,lucafavatella/otp,bernardd/otp,neeraj9/otp,NOMORECOFFEE/otp,falkevik/otp,johanclaesson/otp,lantti/otp,mikpe/otp,bsmr-erlang/otp,mikpe/otp,falkevik/otp,stolen/otp,isvilen/otp,erlang/otp,schlagert/otp,RichMorin/otp,beni55/otp,platinumthinker/otp,sitexa/otp,bjorng/otp,krishnakumar4a4/otp,vladdu/otp,derek121/otp,bjorng/otp,lhslll/otp,hairyhum/otp,basho/otp,platinumthinker/otp,marquisthunder/otp,bernardd/otp,lhslll/otp,lhslll/otp,mikpe/otp,rlipscombe/otp,release-project/otp,kvakvs/otp,vic/otp,marquisthunder/otp,platinumthinker/otp,matwey/otp,lrascao/otp,ader1990/otp,sammoth-wazoku/otp,msantos/otp,g-andrade/otp,bsmr-erlang/otp,kvakvs/otp,weisslj/otp,tuncer/otp,sdebnath/otp,sitexa/otp,c-rack/otp,saleyn/otp,s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