* nt/configure.bat: Remove everything except the blurb about the
new build procedure.

* make-dist: Remove references to makefile.w32-in in various
directories, and to files in nt/ that were deleted.

* etc/NEWS: Mention the fact that the files were dropped.

Run admin/update-copyright.

Rely on add-function instead.
* lisp/loadup.el: Preload nadvice.
* lisp/isearch.el (isearch-filter-predicates): Rename it back to
isearch-filter-predicate.
(isearch-message-prefix): Use advice-function-mapc and advice
properties to get the isearch-message-prefix.
(isearch-search, isearch-lazy-highlight-search): Revert to funcall
instead of run-hook-with-args-until-failure.
(isearch-filter-visible): Not obsolete any more.
* lisp/replace.el (perform-replace): Revert to funcall
instead of run-hook-with-args-until-failure.
* lisp/wdired.el (wdired-change-to-wdired-mode): Use add-function.
* lisp/dired-aux.el (dired-isearch-filenames-mode): Rename from
dired-isearch-filenames-toggle; make it into a proper minor mode.
Use add/remove-function.
(dired-isearch-filenames-setup, dired-isearch-filenames-end):
Call the minor-mode rather than add/remove-hook.
(dired-isearch-filter-filenames):
Remove isearch-message-prefix property.
* lisp/info.el (Info--search-loop): New function, extracted from Info-search.
Funcall isearch-filter-predicate instead of
run-hook-with-args-until-failure isearch-filter-predicates.
(Info-search): Use it.
(Info-mode): Use isearch-filter-predicate instead of
isearch-filter-predicates.
* src/lisp.mk (lisp): Add nadvice.elc.
* lib-src/makefile.w32-in (lisp2): Add nadvice.elc.

Fixes: debbugs:14714

* lisp/loadup.el: Just use unversioned DOC.
* Makefile.in (install-doc): DOC file is not version specific any more.
* .bzrignore: Don't ignore DOC-* any more.
* admin/quick-install-emacs: Don't prune DOC-* files a any more.
* doc/lispref/loading.texi (Autoload):
* doc/lispref/help.texi (Documentation Basics, Accessing Documentation)
(Accessing Documentation, Accessing Documentation): DOC-* is now DOC.
* etc/.gitignore: Don't ignore DOC-* any more.
* lib-src/makefile.w32-in ($(DOC)): Use DOC rather than DOC-X.
* msdos/sed1x.inp: Don't rewrite DOC any more.
* nt/makefile.w32-in (clean, top-distclean): DOC-X doesn't exist any more.
* src/Makefile.in (bootstrap-clean): DOC-* doesn't exist any more.
* src/makefile.w32-in (DOC): Use just "DOC".

 lib-src/makefile.w32-in (LIB_SRC): Move before first use.