emacs-31 updated (4a3d5b110eb -> 927a7fff5ec)

zge pushed a change to branch emacs-31.

      from  4a3d5b110eb Fix memcpy size in 'merge_faces'
       new  ea3d78898a2 Allow uninstalling dependency with multiple installations
       new  927a7fff5ec Restore public interfaces for accessing built-in package info


Summary of changes:
 lisp/emacs-lisp/package-activate.el   |  2 --
 lisp/emacs-lisp/package.el            | 49 +++++++++++++++++++++++++++++++----
 test/lisp/emacs-lisp/package-tests.el | 11 ++++++++
 3 files changed, 55 insertions(+), 7 deletions(-)