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/depsgraph/intern/builder/deg_builder_relations_view_layer.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations_view_layer.cc
index 8d5f74337b6..622bb4a8a02 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations_view_layer.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations_view_layer.cc
@@ -111,11 +111,11 @@ void DepsgraphRelationBuilder::build_view_layer(Scene *scene, ViewLayer *view_la
 		build_compositor(scene);
 	}
 	/* Masks. */
-	LISTBASE_FOREACH (Mask *, mask, &bmain_->mask) {
+	LISTBASE_FOREACH (Mask *, mask, &bmain_->masks) {
 		build_mask(mask);
 	}
 	/* Movie clips. */
-	LISTBASE_FOREACH (MovieClip *, clip, &bmain_->movieclip) {
+	LISTBASE_FOREACH (MovieClip *, clip, &bmain_->movieclips) {
 		build_movieclip(clip);
 	}
 	/* Material override. */