Geometry Nodes: Display Node Warnings in Modifier

With this commit, node warnings added to nodes during evaluation
(not "Info" warnings) will also draw in the modifier. In the future
there could be a "search for this node" button as well.

Differential Revision: https://developer.blender.org/D11983

Cleanup: Add function to check a curve's spline types

The need for this has come up a few times.

Fix: "Bake" automatically calculated handles in set handle node

Because these handles are calculated lazily, we need to make sure they
are calculated before switching to a manually positioned mode.
I doubt it would ever be necessary, but theoretically this could happen
on a per-point level, to avoid calculating handles not in the selection.

Cleanup: Remove unecessary change order of switch cases

Also don't check for mesh_eval for text objects

Cleanup: Comment formatting, wording

Remove redundant text object mesh/displist drawing code

Skip mesh conversion for "fast text editing"

Merge branch 'master' into curve-nodes-modifier

Merge branch 'master' into curve-nodes-modifier

Fix T89827: Attribute transfer node crash on mesh with no faces

Just add a check for whether the mesh has faces when retrieving an
attribute on the corner domain. In the future there could be an info
message in the node in this case, since maybe it's not intuitive.