I have fixed it on the JVM as of NQP commit:
# Fix RT #117683 on JVM \c[LINE FEED] \c[CARRIAGE RETURN]
# Also fixes \c[NEXT LINE] as well.
Fixed on MoarVM as of MoarVM commit:
# Fix RT #117683 \c[LINE FEED] \c[CARRIAGE RETURN]
# Also fixes \c[NEXT LINE] and \c[FORM FEED] as well.
Also in addition as soon as this Pull Request gets accepted we will get access
to all of the Unicode Alias names: