Changes

Changes from Mercurial (hg https://foss.heptapod.net/isa-afp/afp-devel/ default)

Changeset 11181:b5b8255ae4c4 by Andreas Lochbihler: more operations for maps
The file was modified	`thys/Containers/AssocList.thy`
The file was modified	`thys/Containers/Mapping_Impl.thy`