8222852: Reduce String concat combinator tree shapes by folding constants into prependers
Reviewed-by: shade, plevart, forax
Contributed-by: claes.redestad@oracle.com, peter.levart@gmail.com
^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.src-rev$
^.jib/
\.DS_Store
\.metadata/
\.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
.*/JTreport/.*
.*/JTwork/.*
.*/.git/.*