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

2 files changed, 4 insertions, 4 deletions

diff --git a/source/blender/editors/animation/anim_channels_defines.c b/source/blender/editors/animation/anim_channels_defines.c
index 4780352e5dc..3d768b84846 100644
--- a/source/blender/editors/animation/anim_channels_defines.c
+++ b/source/blender/editors/animation/anim_channels_defines.c
@@ -668,7 +668,7 @@ static int acf_object_icon(bAnimListElem *ale)
       return ICON_OUTLINER_OB_MESH;
     case OB_CAMERA:
       return ICON_OUTLINER_OB_CAMERA;
-    case OB_CURVE:
+    case OB_CURVES_LEGACY:
       return ICON_OUTLINER_OB_CURVE;
     case OB_MBALL:
       return ICON_OUTLINER_OB_META;
diff --git a/source/blender/editors/animation/anim_filter.c b/source/blender/editors/animation/anim_filter.c
index d6163f21c79..0389e57627a 100644
--- a/source/blender/editors/animation/anim_filter.c
+++ b/source/blender/editors/animation/anim_filter.c
@@ -2530,9 +2530,9 @@ static size_t animdata_filter_ds_obdata(
       expanded = FILTER_LAM_OBJD(la);
       break;
     }
-    case OB_CURVE: /* ------- Curve ---------- */
-    case OB_SURF:  /* ------- Nurbs Surface ---------- */
-    case OB_FONT:  /* ------- Text Curve ---------- */
+    case OB_CURVES_LEGACY: /* ------- Curve ---------- */
+    case OB_SURF:          /* ------- Nurbs Surface ---------- */
+    case OB_FONT:          /* ------- Text Curve ---------- */
     {
       Curve *cu = (Curve *)ob->data;