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

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/io/usd/intern/usd_reader_curve.cc b/source/blender/io/usd/intern/usd_reader_curve.cc
index e331030164e..0d3c2feb8f3 100644
--- a/source/blender/io/usd/intern/usd_reader_curve.cc
+++ b/source/blender/io/usd/intern/usd_reader_curve.cc
@@ -26,13 +26,13 @@ namespace blender::io::usd {
 
 void USDCurvesReader::create_object(Main *bmain, const double /* motionSampleTime */)
 {
-  curve_ = BKE_curve_add(bmain, name_.c_str(), OB_CURVE);
+  curve_ = BKE_curve_add(bmain, name_.c_str(), OB_CURVES_LEGACY);
 
   curve_->flag |= CU_3D;
   curve_->actvert = CU_ACT_NONE;
   curve_->resolu = 2;
 
-  object_ = BKE_object_add_only_object(bmain, OB_CURVE, name_.c_str());
+  object_ = BKE_object_add_only_object(bmain, OB_CURVES_LEGACY, name_.c_str());
   object_->data = curve_;
 }