sed -Ei 's/(g_\w+)\s*= new (name|expr|format|level|string_ref)\W.*;/\0\n mark_persistent(\1->raw());/' src/kernel/**/*.cpp src/util/**/*.cpp src/library/**/*.cpp
Motivation: auxiliary recursors such as `brecOn` do not depend on
user-facing projection definitions anymore.
Thus, we can simplify `whnfCore` at `TypeUtil`.
