Swift: fix downgrade script

Author: redsun82

swift/downgrades/04ef9ecaa9e06a587f252f147462861e3d32846a/upgrade.properties

@@ -7,6 +7,7 @@ unspecified_element_children.rel: run downgrade.ql new_unspecified_element_child
 pack_element_exprs.rel: delete
 pack_expansion_exprs.rel: delete
 
+pack_archetype_types.rel: delete
 pack_element_types.rel: delete
 pack_expansion_types.rel: delete
 pack_types.rel: delete

swift/downgrades/ea1b37a631001395b9f1eeb36bd5ecec871a7190/upgrade.properties

@@ -2,7 +2,7 @@ description: Removes availability info
 compatibility: partial
 unspecified_elements.rel: run unspecified_elements.ql
 availability_infos.rel: delete
-availability_specs.rel: delete
+availability_info_specs.rel: delete
 other_availability_specs.rel: delete
 platform_version_availability_specs.rel: delete
 condition_element_availabilities.rel: delete