master updated (ba6df55 -> c4724ad)

[Mattias Engdegård]

mattiase pushed a change to branch master.

      from  ba6df55   Fixup dired-do-find-regexp-and-replace
       new  fab1e22   Optimise `member` and `assoc` (etc) with constant empty 
list
       new  bba48d6   More robust optimisation of `ignore`
       new  c4724ad   Normalise nested `progn` forms in byte-code optimiser


Summary of changes:
 lisp/emacs-lisp/byte-opt.el            | 85 ++++++++++++++++++++--------------
 lisp/emacs-lisp/bytecomp.el            |  6 +++
 test/lisp/emacs-lisp/bytecomp-tests.el | 15 ++++++
 3 files changed, 71 insertions(+), 35 deletions(-)