Rename any instance of scene layer or render layer in code with view layer

The RenderResult struct still has a listbase of RenderLayer, but that's ok
since this is strictly for rendering.

* Subversion bump (to 2.80.2)
* DNA low level doversion (renames) - only for .blend created since 2.80 started

Note: We can't use DNA_struct_elem_find or get file version in init_structDNA,
so we are manually iterating over the array of the SDNA elements instead.

Note 2: This doversion change with renames can be reverted in a few months. But
so far it's required for 2.8 files created between October 2016 and now.

Reviewers: campbellbarton, sergey

Differential Revision: https://developer.blender.org/D2927

tests/python/view_layer/test_evaluation_selectability_b.py

@@ -0,0 +1,56 @@
+# ############################################################
+# Importing - Same For All Render Layer Tests
+# ############################################################
+
+import unittest
+import os
+import sys
+
+from view_layer_common import *
+
+
+# ############################################################
+# Testing
+# ############################################################
+
+class UnitTesting(ViewLayerTesting):
+    def test_selectability(self):
+        """
+        See if the depsgraph evaluation is correct
+        """
+        import bpy
+
+        scene = bpy.context.scene
+        workspace = bpy.context.workspace
+        cube = bpy.data.objects.new('guinea pig', bpy.data.meshes.new('mesh'))
+
+        layer = scene.view_layers.new('Selectability Test')
+        layer.collections.unlink(layer.collections[0])
+        scene.view_layers.active = layer
+        workspace.view_layer = layer
+
+        scene_collection_mom = scene.master_collection.collections.new("Mom")
+        scene_collection_kid = scene_collection_mom.collections.new("Kid")
+
+        scene_collection_kid.objects.link(cube)
+
+        layer_collection_mom = layer.collections.link(scene_collection_mom)
+        layer_collection_kid = layer.collections.link(scene_collection_kid)
+        bpy.context.scene.update()  # update depsgraph
+        cube.select_set('SELECT')
+
+        layer_collection_mom.collections[layer_collection_kid.name].hide = True
+        layer_collection_kid.hide = True
+
+        bpy.context.scene.update()  # update depsgraph
+        self.assertFalse(cube.visible_get(), "Cube should be invisible")
+        self.assertFalse(cube.select_get(), "Cube should be unselected")
+
+
+# ############################################################
+# Main - Same For All Render Layer Tests
+# ############################################################
+
+if __name__ == '__main__':
+    UnitTesting._extra_arguments = setup_extra_arguments(__file__)
+    unittest.main()