Hi hackers,
We've had node-casting versions of the list extraction macros since
2017, but several cases of the written-out version have been added since
then (even by Tom, who added the l*_node() macros).
Here's a patch to convert the remaining ones. The macros were
back-patched to all supported branches, so this won't create any
new back-patching hazards.
- ilmari