Small cleanup/refactoring in support of PR #5213#5251

Merged

rwgk merged 3 commits intopybind:masterfrom

rwgk:bakein_prep_on_master

Jul 19, 2024

Commits on Jul 18, 2024

Factor out detail/value_and_holder.h (from detail/type_caster_base.h)
rwgk
committed
Fix a minor and inconsequential inconsistency in `copyable_holder_caster`: the correct `load_value()` return type is `void` (as defined in `type_caster_generic`)
rwgk
committed
Add `DANGER ZONE` comment in detail/init.h, similar to a comment added on the smart_holder branch (all the way back in 2021).
rwgk
committed