* etc/NEWS (Icomplete): Mention icomplete-in-buffer-mode.

* lisp/icomplete.el (icomplete-in-buffer): Make obsolete.
(icomplete-mode): Use icomplete-in-buffer-mode.
(icomplete--field-string): Use completion-in-region--data.
(icomplete-minibuffer-setup): Don't setup completion-in-region here.
(icomplete-exhibit): Call icomplete--matches-summary.
(icomplete--matches-summary): Hew helper.
(icomplete-in-buffer-mode): New minor mode.
(icomplete-in-region, icomplete-in-region-complete)
(icomplete--saved-vars, icomplete--setup-vars)
(icomplete--restore-vars, icomplete--in-region-setup): New
functions.

* doc/lispref/modes.texi (Other Font Lock Variables):
* lisp/jit-lock.el (jit-lock-functions, jit-lock-register):
Document the return value of the fontification functions.

* etc/NEWS:
* src/callint.c (syms_of_callint): Fix wording of the
documentation of 'inhibit-mouse-event-check'.

* doc/lispref/searching.texi (Extending Rx): Add example illustrating
how to define a user-defined Rx form that performs computation,
from a discussion with Michael Herdeegen (bug#50136).
* lisp/emacs-lisp/rx.el (rx): Clarify evaluation time for `eval`.

* doc/emacs/frames.texi (Menu Mouse Clicks): Mention S-F10
to pop up the context menu.

* src/callint.c (Fcall_interactively):
Use inhibit_mouse_event_check for the case 'e'.
(inhibit-mouse-event-check): New variable.

https://lists.gnu.org/archive/html/emacs-devel/2021-08/msg00733.html

* test/lisp/progmodes/cperl-mode-tests.el
(cperl-test-here-doc-missing-end): Fix quote regexp.

* src/frame.c (Fnext_frame):
* doc/lispref/frames.texi (Finding All Frames): Improve wording
and style of the 'next-frame's documentation.

* lisp/progmodes/cperl-mode.el (cperl-commentify)
(cperl-here-doc-functions, cperl-is-here-doc-p)
(cperl-find-pods-heres): Fix wording, style, and punctuation of
doc strings.