runtime(vim): Update base syntax, match enum constructor type args

closes: #17840

Co-authored-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/syntax/generator/vim.vim.base

@@ -2,7 +2,7 @@
 " Language:	   Vim script
 " Maintainer:	   Hirohito Higashi <h.east.727 ATMARK gmail.com>
 "	   Doug Kearns <dougkearns@gmail.com>
-" Last Change:	   2025 Jul 23
+" Last Change:	   2025 Jul 24
 " Former Maintainer: Charles E. Campbell
 
 " DO NOT CHANGE DIRECTLY.
@@ -698,12 +698,19 @@ if s:vim9script
   syn cluster	vim9EnumNameContinue	contains=vim9EnumNameContinue,vim9EnumNameContinueComment
 
   " enforce enum value list location
-  syn match	vim9EnumValue		contained	"\<\a\w*\>"		  nextgroup=vim9EnumValueArgList,vim9EnumValueListComma,vim9Comment
+  syn match	vim9EnumValue		contained	"\<\a\w*\>"		  nextgroup=vim9EnumValueTypeArgs,vim9EnumValueArgList,vim9EnumValueListComma,vim9Comment
   syn match	vim9EnumValueListComma	contained	","	skipwhite skipempty nextgroup=vim9EnumValue,vim9EnumValueListCommaComment
   syn region	vim9EnumValueListCommaComment	contained
         \ start="#" skip="\n\s*\%(\\\|#\\ \)" end="$"
         \ skipwhite skipempty nextgroup=vim9EnumValueListCommaComment,vim9EnumValue
         \ contains=@vimCommentGroup,vimCommentString
+  syn region	vim9EnumValueTypeArgs	contained
+        \ matchgroup=Delimiter
+        \ start="<\ze\a"
+        \ end=">"
+        \ nextgroup=vim9EnumValueArgList
+        \ contains=@vimType
+        \ oneline
   syn region	vim9EnumValueArgList	contained
         \ matchgroup=vimParenSep start="(" end=")"
         \ nextgroup=vim9EnumValueListComma

runtime/syntax/testdir/dumps/vim9_generic_function_example_enum_00.dump

@@ -0,0 +1,20 @@
+| +0#0000e05#a8a8a8255@1>v+0#af5f00255#ffffff0|i|m|9|s|c|r|i|p|t| +0#0000000&@62
+| +0#0000e05#a8a8a8255@1|#+0&#ffffff0| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |h|i|g|h|l|i|g|h|t| |l|i|n|k| |v|i|m|9|D|e|f|T|y|p|e|P|a|r|a|m| |T|o|d|o| +0#0000000&@19
+| +0#0000e05#a8a8a8255@1|#+0&#ffffff0| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |h|i|g|h|l|i|g|h|t| |l|i|n|k| |v|i|m|9|E|n|u|m|V|a|l|u|e| |I|d|e|n|t|i|f|i|e|r| +0#0000000&@16
+| +0#0000e05#a8a8a8255@1|#+0&#ffffff0| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |l|e|t| |g|:|v|i|m|s|y|n|_|f|o|l|d|i|n|g| |=| |"+0#e000002&|e|f|"| +0#0000000&@28
+| +0#0000e05#a8a8a8255@1|#+0&#ffffff0| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |s|e|t|l| |f|d|c|=|2| |f|d|l|=|9@1| |f|d|m|=|s|y|n|t|a|x| +0#0000000&@27
+| +0#0000e05#a8a8a8255@1|#+0&#ffffff0| +0#0000000&|S+0#e000e06&|e@1|:| +0#0000e05&|h|t@1|p|s|:|/@1|g|i|t|h|u|b|.|c|o|m|/|v|i|m|/|v|i|m|/|p|u|l@1|/|1|7|3|1|3|#|i|s@1|u|e|c|o|m@1|e|n|t|-|3|0|3@1|5|3|7|1|2|7| |(|A|l|i
+| +0&#a8a8a8255@1|a+0&#ffffff0|k|s|e|i| |B|u|d|a|v|e|i|)| +0#0000000&@58
+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@72
+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@72
+|-+0#0000e05#a8a8a8255| |e+0#af5f00255#ffffff0|n|u|m| +0#0000000&|C|o|m@1|o|n|P|a|i|r| @57
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|H+0#00e0e07&|e|l@1|o|W|o|r|l|d|<+0#e000e06&|s+0#00e0003&|t|r|i|n|g|,+0#0000000&| |s+0#00e0003&|t|r|i|n|g|>+0#e000e06&|(|'+0#e000002&|h|e|l@1|o|'|,+0#0000000&| |'+0#e000002&|w|o|r|l|d|'|)+0#e000e06&|,+0#0000000&| @23
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|B+0#00e0e07&|o@1|l|e|a|n|s|<+0#e000e06&|b+0#00e0003&|o@1|l|,+0#0000000&| |b+0#00e0003&|o@1|l|>+0#e000e06&|(|t+0#e000002&|r|u|e|,+0#0000000&| |f+0#e000002&|a|l|s|e|)+0#e000e06&| +0#0000000&@35
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@72
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|c+0#af5f00255&|o|n|s|t| +0#0000000&|_|f|s|t|:| |a+0#00e0003&|n|y| +0#0000000&@53
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|c+0#af5f00255&|o|n|s|t| +0#0000000&|_|s|n|d|:| |a+0#00e0003&|n|y| +0#0000000&@53
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@72
+|-+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|d+0#af5f00255&|e|f| +0#0000000&|n+0#00e0e07&|e|w|<+0#e000e06&|T+0#0000001#ffff4012|,+0#0000000#ffffff0| |U+0#0000001#ffff4012|>+0#e000e06#ffffff0|(|f+0#0000000&|s|t|:| |T|,| |s|n|d|:| |U|)+0#e000e06&| +0#0000000&@39
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@7|t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|f|s|t| |=+0#af5f00255&| +0#0000000&|f|s|t| @49
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@7|t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|s|n|d| |=+0#af5f00255&| +0#0000000&|s|n|d| @49
+@57|1|,|1| @10|T|o|p| 

runtime/syntax/testdir/dumps/vim9_generic_function_example_enum_01.dump

@@ -0,0 +1,20 @@
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|c+0#af5f00255&|o|n|s|t| +0#0000000&|_|f|s|t|:| |a+0#00e0003&|n|y| +0#0000000&@53
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|c+0#af5f00255&|o|n|s|t| +0#0000000&|_|s|n|d|:| |a+0#00e0003&|n|y| +0#0000000&@53
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@72
+|-+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|d+0#af5f00255&|e|f| +0#0000000&|n+0#00e0e07&|e|w|<+0#e000e06&|T+0#0000001#ffff4012|,+0#0000000#ffffff0| |U+0#0000001#ffff4012|>+0#e000e06#ffffff0|(|f+0#0000000&|s|t|:| |T|,| |s|n|d|:| |U|)+0#e000e06&| +0#0000000&@39
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@7|t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|f|s|t| |=+0#af5f00255&| +0#0000000&|f|s|t| @49
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@7>t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|s|n|d| |=+0#af5f00255&| +0#0000000&|s|n|d| @49
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|e+0#af5f00255&|n|d@1|e|f| +0#0000000&@62
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@72
+|-+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|d+0#af5f00255&|e|f| +0#0000000&|F|i|r|s|t|<+0#e000e06&|T+0#0000001#ffff4012|>+0#e000e06#ffffff0|(|)|:+0#0000000&| |T| @51
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@7|r+0#af5f00255&|e|t|u|r|n| +0#0000000&|t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|f|s|t| @48
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|e+0#af5f00255&|n|d@1|e|f| +0#0000000&@62
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@72
+|-+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|d+0#af5f00255&|e|f| +0#0000000&|S|e|c|o|n|d|<+0#e000e06&|T+0#0000001#ffff4012|>+0#e000e06#ffffff0|(|)|:+0#0000000&| |T| @50
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@7|r+0#af5f00255&|e|t|u|r|n| +0#0000000&|t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|s|n|d| @48
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|e+0#af5f00255&|n|d@1|e|f| +0#0000000&@62
+||+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@72
+|-+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|d+0#af5f00255&|e|f| +0#0000000&|s+0#00e0e07&|t|r|i|n|g|(+0#e000e06&|)|:+0#0000000&| |s+0#00e0003&|t|r|i|n|g| +0#0000000&@48
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@7|r+0#af5f00255&|e|t|u|r|n| +0#0000000&|p+0#00e0e07&|r|i|n|t|f|(+0#e000e06&|"+0#e000002&|(|%|s|,| |%|s|)|"|,+0#0000000&| |t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|f|s|t|,| |t+0#00e0e07&|h|i|s|.+0#af5f00255&|_+0#0000000&|s|n|d|)+0#e000e06&| +0#0000000&@17
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|e+0#af5f00255&|n|d@1|e|f| +0#0000000&@62
+@57|1|8|,|9| @9|7|0|%| 

runtime/syntax/testdir/dumps/vim9_generic_function_example_enum_02.dump

@@ -0,0 +1,20 @@
+|2+0#0000e05#a8a8a8255| | +0#0000000#ffffff0@3|e+0#af5f00255&|n|d@1|e|f| +0#0000000&@62
+||+0#0000e05#a8a8a8255| |e+0#af5f00255#ffffff0|n|d|e|n|u|m| +0#0000000&@65
+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0@72
+| +0#0000e05#a8a8a8255@1|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|C|o|m@1|o|n|P|a|i|r|.+0#af5f00255&|H+0#0000000&|e|l@1|o|W|o|r|l|d| @46
+| +0#0000e05#a8a8a8255@1|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|C|o|m@1|o|n|P|a|i|r|.+0#af5f00255&|B+0#0000000&|o@1|l|e|a|n|s| @48
+| +0#0000e05#a8a8a8255@1> +0#0000000#ffffff0@72
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|3|6|,|0|-|1| @7|B|o|t| 

runtime/syntax/testdir/input/vim9_generic_function_example_enum.vim

@@ -0,0 +1,36 @@
+vim9script
+# VIM_TEST_SETUP highlight link vim9DefTypeParam Todo
+# VIM_TEST_SETUP highlight link vim9EnumValue Identifier
+# VIM_TEST_SETUP let g:vimsyn_folding = "ef"
+# VIM_TEST_SETUP setl fdc=2 fdl=99 fdm=syntax
+# See: https://github.com/vim/vim/pull/17313#issuecomment-3033537127 (Aliaksei Budavei)
+
+
+enum CommonPair
+    HelloWorld<string, string>('hello', 'world'),
+    Booleans<bool, bool>(true, false)
+
+    const _fst: any
+    const _snd: any
+
+    def new<T, U>(fst: T, snd: U)
+        this._fst = fst
+        this._snd = snd
+    enddef
+
+    def First<T>(): T
+        return this._fst
+    enddef
+
+    def Second<T>(): T
+        return this._snd
+    enddef
+
+    def string(): string
+        return printf("(%s, %s)", this._fst, this._snd)
+    enddef
+endenum
+
+echo CommonPair.HelloWorld
+echo CommonPair.Booleans
+

runtime/syntax/vim.vim

@@ -2,7 +2,7 @@
 " Language:	   Vim script
 " Maintainer:	   Hirohito Higashi <h.east.727 ATMARK gmail.com>
 "	   Doug Kearns <dougkearns@gmail.com>
-" Last Change:	   2025 Jul 23
+" Last Change:	   2025 Jul 24
 " Former Maintainer: Charles E. Campbell
 
 " DO NOT CHANGE DIRECTLY.
@@ -752,12 +752,19 @@ if s:vim9script
   syn cluster	vim9EnumNameContinue	contains=vim9EnumNameContinue,vim9EnumNameContinueComment
 
   " enforce enum value list location
-  syn match	vim9EnumValue		contained	"\<\a\w*\>"		  nextgroup=vim9EnumValueArgList,vim9EnumValueListComma,vim9Comment
+  syn match	vim9EnumValue		contained	"\<\a\w*\>"		  nextgroup=vim9EnumValueTypeArgs,vim9EnumValueArgList,vim9EnumValueListComma,vim9Comment
   syn match	vim9EnumValueListComma	contained	","	skipwhite skipempty nextgroup=vim9EnumValue,vim9EnumValueListCommaComment
   syn region	vim9EnumValueListCommaComment	contained
         \ start="#" skip="\n\s*\%(\\\|#\\ \)" end="$"
         \ skipwhite skipempty nextgroup=vim9EnumValueListCommaComment,vim9EnumValue
         \ contains=@vimCommentGroup,vimCommentString
+  syn region	vim9EnumValueTypeArgs	contained
+        \ matchgroup=Delimiter
+        \ start="<\ze\a"
+        \ end=">"
+        \ nextgroup=vim9EnumValueArgList
+        \ contains=@vimType
+        \ oneline
   syn region	vim9EnumValueArgList	contained
         \ matchgroup=vimParenSep start="(" end=")"
         \ nextgroup=vim9EnumValueListComma