restore input completion on injected locals on HEAD.
restore input completion on injected locals on HEAD.

if new locals appear in `_pry_.config.extra_sticky_locals` during the
lifetime of the repl session they should also appear since auto completion
is happening outside #initialize and on user input.

geoffreylitt/pry,josue804/debunker,caporta/pry,bronzdoc/pry,nju520/pry,ooohiroyukiooo/pry,scalixte-mdsol/pry,pvdb/pry,tdg5/pry,shockone/pry,jasonm23/pry,sferik/pry,nju520/pry,gfvcastro/pry,gfvcastro/pry,85x14/pry,tdg5/pry,shockone/pry,jasonm23/pry,ooohiroyukiooo/pry,ngpestelos/pry,printercu/pry,ngpestelos/pry,jasnow/pry,85x14/pry,icebreaker/pry,raeno/pry,bronzdoc/pry,raeno/pry,sferik/pry,sideci-sample/sideci-sample-pry,geoffreylitt/pry,josue804/debunker,caporta/pry,printercu/pry,nju520/pry,jasnow/pry,jasnow/pry,scalixte-mdsol/pry,tdg5/pry,85x14/pry,scalixte-mdsol/pry,jasonm23/pry,pvdb/pry,raeno/pry,shockone/pry,ooohiroyukiooo/pry,caporta/pry,icebreaker/pry