Cleanup: split automerge logic into own file

This isn't closely related to selection & this file was over 5k lines.

1 files changed, 8 insertions, 6 deletions

diff --git a/source/blender/editors/include/ED_mesh.h b/source/blender/editors/include/ED_mesh.h
index 194378d6bb6..f2ef3a60bc5 100644
--- a/source/blender/editors/include/ED_mesh.h
+++ b/source/blender/editors/include/ED_mesh.h
@@ -138,12 +138,7 @@ bool BMBVH_EdgeVisible(struct BMBVHTree *tree,
                        struct View3D *v3d,
                        struct Object *obedit);
 
-/* editmesh_undo.c */
-void ED_mesh_undosys_type(struct UndoType *ut);
-
-/* editmesh_select.c */
-void EDBM_select_mirrored(
-    struct BMEditMesh *em, const int axis, const bool extend, int *r_totmirr, int *r_totfail);
+/* editmesh_automerge.c */
 void EDBM_automerge(struct Scene *scene, struct Object *ob, bool update, const char hflag);
 void EDBM_automerge_and_split(struct Scene *scene,
                               struct Object *ob,
@@ -152,6 +147,13 @@ void EDBM_automerge_and_split(struct Scene *scene,
                               bool update,
                               const char hflag);
 
+/* editmesh_undo.c */
+void ED_mesh_undosys_type(struct UndoType *ut);
+
+/* editmesh_select.c */
+void EDBM_select_mirrored(
+    struct BMEditMesh *em, const int axis, const bool extend, int *r_totmirr, int *r_totfail);
+
 struct BMVert *EDBM_vert_find_nearest_ex(struct ViewContext *vc,
                                          float *r_dist,
                                          const bool use_select_bias,