Add get_map_element to beam_ssa:no_side_effect/1
Add get_map_element to beam_ssa:no_side_effect/1

The `get_map_element` instruction has no side effects, and should be
removed if its value is not used.

rlipscombe/otp,bjorng/otp,ferd/otp,bsmr-erlang/otp,aboroska/otp,bsmr-erlang/otp,rlipscombe/otp,emacsmirror/erlang,getong/otp,vladdu/otp,lrascao/otp,RoadRunnr/otp,bjorng/otp,legoscia/otp,g-andrade/otp,aboroska/otp,lrascao/otp,getong/otp,electricimp/otp,ferd/otp,dumbbell/otp,bjorng/otp,lrascao/otp,vinoski/otp,aboroska/otp,kvakvs/otp,g-andrade/otp,dumbbell/otp,lrascao/otp,vinoski/otp,g-andrade/otp,vladdu/otp,mikpe/otp,aboroska/otp,mikpe/otp,jj1bdx/otp,uabboli/otp,potatosalad/otp,dgud/otp,mikpe/otp,isvilen/otp,electricimp/otp,kvakvs/otp,kvakvs/otp,isvilen/otp,isvilen/otp,mikpe/otp,jj1bdx/otp,electricimp/otp,kvakvs/otp,electricimp/otp,vinoski/otp,emacsmirror/erlang,legoscia/otp,dgud/otp,emacsmirror/erlang,isvilen/otp,vinoski/otp,legoscia/otp,ferd/otp,vinoski/otp,bjorng/otp,uabboli/otp,isvilen/otp,bjorng/otp,electricimp/otp,mikpe/otp,vladdu/otp,jj1bdx/otp,dgud/otp,dumbbell/otp,erlang/otp,aboroska/otp,ferd/otp,kvakvs/otp,potatosalad/otp,getong/otp,rlipscombe/otp,erlang/otp,legoscia/otp,uabboli/otp,kvakvs/otp,vladdu/otp,legoscia/otp,lrascao/otp,jj1bdx/otp,electricimp/otp,ferd/otp,legoscia/otp,g-andrade/otp,isvilen/otp,dgud/otp,legoscia/otp,uabboli/otp,rlipscombe/otp,rlipscombe/otp,bsmr-erlang/otp,rlipscombe/otp,bsmr-erlang/otp,vladdu/otp,emacsmirror/erlang,potatosalad/otp,g-andrade/otp,isvilen/otp,erlang/otp,ferd/otp,jj1bdx/otp,RoadRunnr/otp,vladdu/otp,vinoski/otp,getong/otp,g-andrade/otp,erlang/otp,RoadRunnr/otp,RoadRunnr/otp,dgud/otp,getong/otp,dgud/otp,bsmr-erlang/otp,rlipscombe/otp,emacsmirror/erlang,emacsmirror/erlang,mikpe/otp,g-andrade/otp,dumbbell/otp,getong/otp,ferd/otp,RoadRunnr/otp,isvilen/otp,vladdu/otp,lrascao/otp,dgud/otp,getong/otp,isvilen/otp,emacsmirror/erlang,getong/otp,aboroska/otp,getong/otp,potatosalad/otp,rlipscombe/otp,vladdu/otp,bsmr-erlang/otp,aboroska/otp,kvakvs/otp,uabboli/otp,kvakvs/otp,jj1bdx/otp,dumbbell/otp,dumbbell/otp,vinoski/otp,legoscia/otp,aboroska/otp,erlang/otp,dgud/otp,potatosalad/otp,bjorng/otp,erlang/otp,uabboli/otp,ferd/otp,dumbbell/otp,bsmr-erlang/otp,RoadRunnr/otp,dgud/otp,ferd/otp,potatosalad/otp,kvakvs/otp,bjorng/otp,getong/otp,emacsmirror/erlang,dumbbell/otp,RoadRunnr/otp,erlang/otp,lrascao/otp,RoadRunnr/otp,erlang/otp,uabboli/otp,potatosalad/otp,erlang/otp,bsmr-erlang/otp,g-andrade/otp,mikpe/otp,uabboli/otp,rlipscombe/otp,dumbbell/otp,lrascao/otp,electricimp/otp,bsmr-erlang/otp,potatosalad/otp,lrascao/otp,legoscia/otp,rlipscombe/otp,uabboli/otp,vinoski/otp,jj1bdx/otp,mikpe/otp,vinoski/otp,potatosalad/otp,jj1bdx/otp,bjorng/otp,electricimp/otp,electricimp/otp,g-andrade/otp,bjorng/otp,dgud/otp,potatosalad/otp,RoadRunnr/otp,vinoski/otp,emacsmirror/erlang,g-andrade/otp,vladdu/otp,jj1bdx/otp,emacsmirror/erlang,mikpe/otp,dumbbell/otp,isvilen/otp,bjorng/otp,erlang/otp,jj1bdx/otp,mikpe/otp,aboroska/otp