Cleanup: Rename original curve object type enum

This commit renames enums related the "Curve" object type and ID type
to add `_LEGACY` to the end. The idea is to make our aspirations clearer
in the code and to avoid ambiguities between `CURVE` and `CURVES`.

Ref T95355

To summarize for the record, the plans are:
- In the short/medium term, replace the `Curve` object data type with
 `Curves`
- In the longer term (no immediate plans), use a proper data block for
  3D text and surfaces.

Differential Revision: https://developer.blender.org/D14114

4 files changed, 4 insertions, 4 deletions

diff --git a/source/blender/modifiers/intern/MOD_array.c b/source/blender/modifiers/intern/MOD_array.c
index 2cc3bb8c916..7d119b4b112 100644
--- a/source/blender/modifiers/intern/MOD_array.c
+++ b/source/blender/modifiers/intern/MOD_array.c
@@ -819,7 +819,7 @@ static bool isDisabled(const struct Scene *UNUSED(scene),
    * In other cases it should be impossible to have a type mismatch.
    */
 
-  if (amd->curve_ob && amd->curve_ob->type != OB_CURVE) {
+  if (amd->curve_ob && amd->curve_ob->type != OB_CURVES_LEGACY) {
     return true;
   }
   if (amd->start_cap && amd->start_cap->type != OB_MESH) {
diff --git a/source/blender/modifiers/intern/MOD_curve.c b/source/blender/modifiers/intern/MOD_curve.c
index ca5d59433f0..d1c7dd43f15 100644
--- a/source/blender/modifiers/intern/MOD_curve.c
+++ b/source/blender/modifiers/intern/MOD_curve.c
@@ -71,7 +71,7 @@ static bool isDisabled(const Scene *UNUSED(scene), ModifierData *md, bool UNUSED
    *
    * In other cases it should be impossible to have a type mismatch.
    */
-  return !cmd->object || cmd->object->type != OB_CURVE;
+  return !cmd->object || cmd->object->type != OB_CURVES_LEGACY;
 }
 
 static void foreachIDLink(ModifierData *md, Object *ob, IDWalkFunc walk, void *userData)
diff --git a/source/blender/modifiers/intern/MOD_ui_common.c b/source/blender/modifiers/intern/MOD_ui_common.c
index 94482742831..90652c180c6 100644
--- a/source/blender/modifiers/intern/MOD_ui_common.c
+++ b/source/blender/modifiers/intern/MOD_ui_common.c
@@ -324,7 +324,7 @@ static void modifier_panel_header(const bContext *C, Panel *panel)
       buttons_number++;
     }
   } /* Tessellation point for curve-typed objects. */
-  else if (ELEM(ob->type, OB_CURVE, OB_SURF, OB_FONT)) {
+  else if (ELEM(ob->type, OB_CURVES_LEGACY, OB_SURF, OB_FONT)) {
     /* Some modifiers can work with pre-tessellated curves only. */
     if (ELEM(md->type, eModifierType_Hook, eModifierType_Softbody, eModifierType_MeshDeform)) {
       /* Add button (appearing to be ON) and add tip why this can't be changed. */
diff --git a/source/blender/modifiers/intern/MOD_util.c b/source/blender/modifiers/intern/MOD_util.c
index 41b600e386b..a8c52108cc0 100644
--- a/source/blender/modifiers/intern/MOD_util.c
+++ b/source/blender/modifiers/intern/MOD_util.c
@@ -204,7 +204,7 @@ Mesh *MOD_deform_mesh_eval_get(Object *ob,
       BKE_mesh_orco_ensure(ob, mesh);
     }
   }
-  else if (ELEM(ob->type, OB_FONT, OB_CURVE, OB_SURF)) {
+  else if (ELEM(ob->type, OB_FONT, OB_CURVES_LEGACY, OB_SURF)) {
     /* TODO(sybren): get evaluated mesh from depsgraph once
      * that's properly generated for curves. */
     mesh = BKE_mesh_new_nomain_from_curve(ob);