Move side-effect-free and pure declarations to function definitions

Some Lisp functions still had their `side-effect-free` and `pure`
properties declared in byte-opt.el; do it at their definition instead.
The lists in byte-opt.el now only contain functions implemented in C
and function aliases.

* lisp/emacs-lisp/byte-opt.el (side-effect-free-fns)
(side-effect-and-error-free-fns, pure-fns):
Remove functions whose properties are now declared elsewhere
and some obsolete entries.
* lisp/custom.el (custom-variable-p):
* lisp/emacs-lisp/lisp.el (buffer-end):
* lisp/emacs-lisp/regexp-opt.el (regexp-opt):
* lisp/env.el (getenv):
* lisp/simple.el (count-lines, mark, string-empty-p, lax-plist-get):
* lisp/subr.el (ignore, always, zerop, fixnump, bignump, lsh, last)
(eventp, mouse-movement-p, log10, memory-limit, string-greaterp)
(interactive-p):
* lisp/window.el (get-lru-window, get-largest-window, (window-edges)
(window-body-edges, window-pixel-edges, window-body-pixel-edges)
(window-absolute-pixel-edges, window-absolute-body-pixel-edges)
(one-window-p):
Declare functions `side-effect-free` and/or `pure` as appropriate.

lisp/emacs-lisp/byte-opt.el

@@ -1647,7 +1647,7 @@ See Info node `(elisp) Integer Basics'."
 	 capitalize car-less-than-car car cdr ceiling char-after char-before
 	 char-equal char-to-string char-width compare-strings
 	 window-configuration-equal-p concat coordinates-in-window-p
-	 copy-alist copy-sequence copy-marker copysign cos count-lines
+	 copy-alist copy-sequence copy-marker copysign cos
 	 current-time-string current-time-zone
 	 decode-char
 	 decode-time default-boundp default-value documentation downcase
@@ -1659,26 +1659,24 @@ See Info node `(elisp) Integer Basics'."
 	 float float-time floor format format-time-string frame-first-window
 	 frame-root-window frame-selected-window
 	 frame-visible-p fround ftruncate
-	 get gethash get-buffer get-buffer-window getenv get-file-buffer
+	 get gethash get-buffer get-buffer-window get-file-buffer
 	 hash-table-count
 	 int-to-string intern-soft isnan
 	 keymap-parent
-         lax-plist-get ldexp
+         ldexp
          length length< length> length=
          line-beginning-position line-end-position pos-bol pos-eol
 	 local-variable-if-set-p local-variable-p locale-info
-	 log log10 logand logb logcount logior lognot logxor lsh
-	 make-byte-code make-list make-string make-symbol mark marker-buffer max
+	 log logand logb logcount logior lognot logxor
+	 make-byte-code make-list make-string make-symbol marker-buffer max
          match-beginning match-end
 	 member memq memql min minibuffer-selected-window minibuffer-window
 	 mod multibyte-char-to-unibyte next-window nth nthcdr number-to-string
-	 parse-colon-path
 	 prefix-numeric-value previous-window prin1-to-string propertize
-	 degrees-to-radians
-	 radians-to-degrees rassq rassoc read-from-string regexp-opt
+	 rassq rassoc read-from-string
          regexp-quote region-beginning region-end reverse round
 	 sin sqrt string string< string= string-equal string-lessp
-         string> string-greaterp string-empty-p string-blank-p
+         string>
          string-search string-to-char
 	 string-to-number string-to-syntax substring
 	 sxhash sxhash-equal sxhash-eq sxhash-eql
@@ -1687,45 +1685,40 @@ See Info node `(elisp) Integer Basics'."
 	 string-to-multibyte
 	 take tan time-convert truncate
 	 unibyte-char-to-multibyte upcase user-full-name
-	 user-login-name user-original-login-name custom-variable-p
+	 user-login-name user-original-login-name
 	 vconcat
-	 window-absolute-pixel-edges window-at window-body-height
+	 window-at window-body-height
 	 window-body-width window-buffer window-dedicated-p window-display-table
-	 window-combination-limit window-edges window-frame window-fringes
+	 window-combination-limit window-frame window-fringes
 	 window-height window-hscroll window-inside-edges
 	 window-inside-absolute-pixel-edges window-inside-pixel-edges
 	 window-left-child window-left-column window-margins window-minibuffer-p
 	 window-next-buffers window-next-sibling window-new-normal
 	 window-new-total window-normal-size window-parameter window-parameters
-	 window-parent window-pixel-edges window-point window-prev-buffers
+	 window-parent window-point window-prev-buffers
          window-prev-sibling window-scroll-bars
 	 window-start window-text-height window-top-child window-top-line
 	 window-total-height window-total-width window-use-time window-vscroll
-	 window-width zerop))
+	 window-width))
       (side-effect-and-error-free-fns
-       '(always arrayp atom
-	 bignump bobp bolp bool-vector-p
-	 buffer-end buffer-list buffer-size buffer-string bufferp
+       '(arrayp atom
+	 bobp bolp bool-vector-p
+	 buffer-list buffer-size buffer-string bufferp
 	 car-safe case-table-p cdr-safe char-or-string-p characterp
 	 charsetp commandp cons consp
 	 current-buffer current-global-map current-indentation
 	 current-local-map current-minor-mode-maps current-time
-	 eobp eolp eq equal eventp
-	 fixnump floatp following-char framep
-	 get-largest-window get-lru-window
+	 eobp eolp eq equal
+	 floatp following-char framep
 	 hash-table-p
-         ;; `ignore' isn't here because we don't want calls to it elided;
-         ;; see `byte-compile-ignore'.
-	 identity integerp integer-or-marker-p interactive-p
+	 identity integerp integer-or-marker-p
 	 invocation-directory invocation-name
 	 keymapp keywordp
 	 list listp
 	 make-marker mark-marker markerp max-char
-	 memory-limit
-	 mouse-movement-p
 	 natnump nlistp not null number-or-marker-p numberp
-	 one-window-p overlayp
-	 point point-marker point-min point-max preceding-char primary-charset
+	 overlayp
+	 point point-marker point-min point-max preceding-char
 	 processp proper-list-p
 	 recent-keys recursion-depth
 	 safe-length selected-frame selected-window sequencep
@@ -1761,7 +1754,7 @@ See Info node `(elisp) Integer Basics'."
 ;; values if a marker is moved.
 
 (let ((pure-fns
-       '(concat regexp-opt regexp-quote
+       '(concat regexp-quote
 	 string-to-char string-to-syntax symbol-name
          eq eql
          = /= < <= >= > min max
@@ -1770,8 +1763,7 @@ See Info node `(elisp) Integer Basics'."
          copysign isnan ldexp float logb
          floor ceiling round truncate
          ffloor fceiling fround ftruncate
-         string= string-equal string< string-lessp string> string-greaterp
-         string-empty-p string-blank-p
+         string= string-equal string< string-lessp string>
          string-search
          consp atom listp nlistp proper-list-p
          sequencep arrayp vectorp stringp bool-vector-p hash-table-p
@@ -1780,20 +1772,19 @@ See Info node `(elisp) Integer Basics'."
          integer-or-marker-p number-or-marker-p char-or-string-p
          symbolp keywordp
          type-of
-         identity ignore
+         identity
 
          ;; The following functions are pure up to mutation of their
          ;; arguments.  This is pure enough for the purposes of
          ;; constant folding, but not necessarily for all kinds of
          ;; code motion.
-         car cdr car-safe cdr-safe nth nthcdr last take
+         car cdr car-safe cdr-safe nth nthcdr take
          equal
          length safe-length
          memq memql member
          ;; `assoc' and `assoc-default' are excluded since they are
          ;; impure if the test function is (consider `string-match').
          assq rassq rassoc
-         lax-plist-get
          aref elt
          base64-decode-string base64-encode-string base64url-encode-string
          bool-vector-subsetp

lisp/emacs-lisp/lisp.el

@@ -519,6 +519,7 @@ major mode's decisions about context.")
   "Return the \"far end\" position of the buffer, in direction ARG.
 If ARG is positive, that's the end of the buffer.
 Otherwise, that's the beginning of the buffer."
+  (declare (side-effect-free error-free))
   (if (> arg 0) (point-max) (point-min)))
 
 (defun end-of-defun (&optional arg interactive)

lisp/emacs-lisp/regexp-opt.el

@@ -130,6 +130,7 @@ usually more efficient than that of a simplified version:
      (concat (car parens)
              (mapconcat \\='regexp-quote strings \"\\\\|\")
              (cdr parens))))"
+  (declare (pure t) (side-effect-free t))
   (save-match-data
     ;; Recurse on the sorted list.
     (let* ((max-lisp-eval-depth 10000)