Blender Git Commits

Various updates/cleanups after recent changes.

Mainly:
* Use a simple `GSet` instead of an `IDNameLib_Map` for storing valid
old IDs pointers (since we do not need to complex name-based search
anymore).
* Use new `BKE_main_idmemhash_lookup_id` helper to search into history
of IDs memaddresses.

Merge branch 'undo-experiments' into undo-experiments-swap-reread-datablocks

Merge branch 'id-ensure-unique-memory-address' into undo-experiments

Cleanup; add missing static statement.

Fix build error on Windows

Merge branch 'undo-experiments' into undo-experiments-swap-reread-datablocks

Merge branch 'master' into new-object-types

Merge branch 'master' into new-object-types

Fix for recent merge.

Merge branch 'id-ensure-unique-memory-address' into undo-experiments

Rework a bit re-allocating code, add a lookup utils for history memaddresses.

Add some debug prints about reusing or not old IDs during undo.

Rmove full undo barrier when renaming an ID, we don't need it anymore.

Keeping the undo barrier system though, think this might still be useful
in some cases, also to be exposed as debug option and/or through Py
API...

GPencil: Cleanup loops using macro FOREACH

Merge branch 'master' into greasepencil-object

Merge branch 'master' into greasepencil-object

Fix failure loading copied volume datablocks

Switch back to remaping based on ID addresses.

Now that we have unique memaddresses and history of all of them for each
ID...

Still very dirty code, needs a lot of cleanup. And we should now be able
to get rid of the 'full undo' in more cases too, like ID rename e.g.

write node storage to file and read back

Have to find a better way to do this. An issue is that `node->typeinfo`
when the node is just read.

initial operator socket callback