patch 8.2.4993: smart/C/lisp indenting is optional

Problem:    smart/C/lisp indenting is optional, which makes the code more
            complex, while it only reduces the executable size a bit.
Solution:   Graduate FEAT_CINDENT, FEAT_SMARTINDENT and FEAT_LISP.

runtime/doc/builtin.txt

@@ -1500,8 +1500,7 @@ cindent({lnum})						*cindent()*
 		indenting rules, as with 'cindent'.
 		The indent is counted in spaces, the value of 'tabstop' is
 		relevant.  {lnum} is used just like in |getline()|.
-		When {lnum} is invalid or Vim was not compiled the |+cindent|
-		feature, -1 is returned.
+		When {lnum} is invalid -1 is returned.
 		See |C-indenting|.
 
 		Can also be used as a |method|: >
@@ -5173,8 +5172,7 @@ lispindent({lnum})					*lispindent()*
 		indenting rules, as with 'lisp'.
 		The indent is counted in spaces, the value of 'tabstop' is
 		relevant.  {lnum} is used just like in |getline()|.
-		When {lnum} is invalid or Vim was not compiled the
-		|+lispindent| feature, -1 is returned.  In |Vim9| script an
+		When {lnum} is invalid -1 is returned.  In |Vim9| script an
 		error is given.
 
 		Can also be used as a |method|: >

runtime/doc/indent.txt

@@ -22,9 +22,6 @@ indent and do not perform other formatting.  There are additional options that
 affect other kinds of formatting as well as indenting, see |format-comments|,
 |fo-table|, |gq| and |formatting| for the main ones.
 
-Note that this will not work when the |+smartindent| or |+cindent| features
-have been disabled at compile time.
-
 There are in fact four main methods available for indentation, each one
 overrides the previous if it is enabled, or non-empty for 'indentexpr':
 'autoindent'	uses the indent from the previous line.

runtime/doc/options.txt

@@ -1621,8 +1621,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 				   *'cindent'* *'cin'* *'nocindent'* *'nocin'*
 'cindent' 'cin'		boolean	(default off)
 			local to buffer
-			{not available when compiled without the |+cindent|
-			feature}
 	Enables automatic C program indenting.  See 'cinkeys' to set the keys
 	that trigger reindenting in insert mode and 'cinoptions' to set your
 	preferred indent style.
@@ -1639,8 +1637,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 							*'cinkeys'* *'cink'*
 'cinkeys' 'cink'	string	(default "0{,0},0),0],:,0#,!^F,o,O,e")
 			local to buffer
-			{not available when compiled without the |+cindent|
-			feature}
 	A list of keys that, when typed in Insert mode, cause reindenting of
 	the current line.  Only used if 'cindent' is on and 'indentexpr' is
 	empty.
@@ -1650,8 +1646,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'cinoptions'* *'cino'*
 'cinoptions' 'cino'	string	(default "")
 			local to buffer
-			{not available when compiled without the |+cindent|
-			feature}
 	The 'cinoptions' affect the way 'cindent' reindents lines in a C
 	program.  See |cinoptions-values| for the values of this option, and
 	|C-indenting| for info on C indenting in general.
@@ -1660,8 +1654,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'cinwords'* *'cinw'*
 'cinwords' 'cinw'	string	(default "if,else,while,do,for,switch")
 			local to buffer
-			{not available when compiled without both the
-			|+cindent| and the |+smartindent| features}
 	These keywords start an extra indent in the next line when
 	'smartindent' or 'cindent' is set.  For 'cindent' this is only done at
 	an appropriate place (inside {}).
@@ -1672,8 +1664,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'cinscopedecls'* *'cinsd'*
 'cinscopedecls' 'cinsd'	string	(default "public,protected,private")
 			local to buffer
-			{not available when compiled without the |+cindent|
-			feature}
 	Keywords that are interpreted as a C++ scope declaration by |cino-g|.
 	Useful e.g. for working with the Qt framework that defines additional
 	scope declarations "signals", "public slots" and "private slots": >
@@ -4578,8 +4568,8 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'indentexpr'* *'inde'*
 'indentexpr' 'inde'	string	(default "")
 			local to buffer
-			{not available when compiled without the |+cindent|
-			or |+eval| features}
+			{not available when compiled without the |+eval|
+			feature}
 	Expression which is evaluated to obtain the proper indent for a line.
 	It is used when a new line is created, for the |=| operator and
 	in Insert mode as specified with the 'indentkeys' option.
@@ -4624,8 +4614,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'indentkeys'* *'indk'*
 'indentkeys' 'indk'	string	(default "0{,0},0),0],:,0#,!^F,o,O,e")
 			local to buffer
-			{not available when compiled without the |+cindent|
-			feature}
 	A list of keys that, when typed in Insert mode, cause reindenting of
 	the current line.  Only happens if 'indentexpr' isn't empty.
 	The format is identical to 'cinkeys', see |indentkeys-format|.
@@ -5013,8 +5001,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'lisp'* *'nolisp'*
 'lisp'			boolean	(default off)
 			local to buffer
-			{not available when compiled without the |+lispindent|
-			feature}
 	Lisp mode: When <Enter> is typed in insert mode set the indent for
 	the next line to Lisp standards (well, sort of).  Also happens with
 	"cc" or "S".  'autoindent' must also be on for this to work.  The 'p'
@@ -5028,8 +5014,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'lispwords'* *'lw'*
 'lispwords' 'lw'	string	(default is very long)
 			global or local to buffer |global-local|
-			{not available when compiled without the |+lispindent|
-			feature}
 	Comma-separated list of words that influence the Lisp indenting.
 	|'lisp'|
 
@@ -7222,8 +7206,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 			     *'smartindent'* *'si'* *'nosmartindent'* *'nosi'*
 'smartindent' 'si'	boolean	(default off)
 			local to buffer
-			{not available when compiled without the
-			|+smartindent| feature}
 	Do smart autoindenting when starting a new line.  Works for C-like
 	programs, but can also be used for other languages.  'cindent' does
 	something like this, works better in most cases, but is more strict,

runtime/doc/various.txt

@@ -346,7 +346,7 @@ B  *++builtin_terms*	maximal terminals builtin |builtin-terms|
 N  *+byte_offset*	support for 'o' flag in 'statusline' option, "go"
 			and ":goto" commands.
 m  *+channel*		inter process communication |channel|
-N  *+cindent*		|'cindent'|, C indenting
+6  *+cindent*		|'cindent'|, C indenting
 N  *+clientserver*	Unix and Win32: Remote invocation |clientserver|
    *+clipboard*		|clipboard| support compiled-in
    *+clipboard_working*	|clipboard| support compiled-in and working
@@ -398,7 +398,7 @@ N  *+lambda*		|lambda| and |closure|
 B  *+langmap*		|'langmap'|
 N  *+libcall*		|libcall()|
 N  *+linebreak*		|'linebreak'|, |'breakat'| and |'showbreak'|
-N  *+lispindent*	|'lisp'|
+t  *+lispindent*	|'lisp'|
 T  *+listcmds*		Vim commands for the list of buffers |buffer-hidden|
 			and argument list |:argdelete|
 T  *+localmap*		Support for mappings local to a buffer |:map-local|
@@ -450,7 +450,7 @@ m  *+ruby*		Ruby interface |ruby|
 m  *+ruby/dyn*		Ruby interface |ruby-dynamic| |/dyn|
 T  *+scrollbind*	|'scrollbind'|
 B  *+signs*		|:sign|
-N  *+smartindent*	|'smartindent'|
+t  *+smartindent*	|'smartindent'|
 B  *+sodium*		compiled with libsodium for better encryption support
 B  *+sound*		|sound_playevent()|, |sound_playfile()| functions, etc.
 N  *+spell*		spell checking support, see |spell|