8216010: Change callers of build_u2_from() to call Bytes::get_Java_u2() instead
Summary: Change the callers and delete function build_u2_from()
Reviewed-by: kbarrett, jiangli, coleenp
/build/
/dist/
/.idea/
nbproject/private/
/webrev
/.src-rev
/.jib/
.DS_Store
.metadata/
.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
**/JTreport/**
**/JTwork/**