Cleanup: use plural names for Main lists

Convention was not to but after discussion on 918941483f7e we agree its
best to change the convention.

Names now mostly follow RNA.

Some exceptions:

- Use 'nodetrees' instead of 'nodegroups'
  since the struct is called NodeTree.
- Use 'gpencils' instead of 'grease_pencil'
  since 'gpencil' is a common abbreviation in the C code.

Other exceptions:

- Leave 'wm' as it's a list of one.
- Leave 'ipo' as is for versioning.

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/material.c b/source/blender/blenkernel/intern/material.c
index 5bc65bcda48..d821052f2f4 100644
--- a/source/blender/blenkernel/intern/material.c
+++ b/source/blender/blenkernel/intern/material.c
@@ -645,7 +645,7 @@ void test_all_objects_materials(Main *bmain, ID *id)
 	}
 
 	BKE_main_lock(bmain);
-	for (ob = bmain->object.first; ob; ob = ob->id.next) {
+	for (ob = bmain->objects.first; ob; ob = ob->id.next) {
 		if (ob->data == id) {
 			BKE_material_resize_object(bmain, ob, *totcol, false);
 		}
@@ -972,7 +972,7 @@ bool BKE_object_material_slot_remove(Main *bmain, Object *ob)
 
 	actcol = ob->actcol;
 
-	for (Object *obt = bmain->object.first; obt; obt = obt->id.next) {
+	for (Object *obt = bmain->objects.first; obt; obt = obt->id.next) {
 		if (obt->data == ob->data) {
 			/* Can happen when object material lists are used, see: T52953 */
 			if (actcol > obt->totcol) {