runtime(vim): Update base-syntax, improve :set highlighting

- Match comments and trailing bar after :set without args.
- Match the <...> form for key code options.
- Remove orphaned vim_ex_python[3x]* dump files (Aliaksei Budavei).

closes: #17397

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/syntax/testdir/dumps/vim_ex_set_06.dump

@@ -1,9 +1,15 @@
-|"+0#0000e05#ffffff0| |U|n|r|e|p|o|r|t|e|d| |i|s@1|u|e| |(|d|o|u|b|l|e| |b|a|c|k|s|l|a|s|h|)| +0#0000000&@37
+| +0&#ffffff0@74
+|C+0#af5f00255&|o|m|p|i|l|e|r|S|e|t| +0#0000000&|m+0#e000e06&|a|k|e|p|r|g|=+0#af5f00255&|a+0#0000000&|n|t| @51
+|C+0#af5f00255&|o|m|p|i|l|e|r|S|e|t| +0#0000000&|e+0#e000e06&|r@1|o|r|f|o|r|m|a|t|=+0#af5f00255&|\+0#0000000&| |%|#|[|%|.|%|#|]|\| |%|#|%|f|:+0#e000e06&|%+0#0000000&|l|:+0#e000e06&|%+0#0000000&|v|:+0#e000e06&|%+0#0000000&|*|\@1|d|:+0#e000e06&|%+0#0000000&|*|\@1|d|:+0#e000e06&|\+0#0000000&| |%|t|%|[|%|^|:+0#e000e06&|]+0#0000000&|%|#|:+0#e000e06&|%+0#0000000&|m|,+0#e000e06&
+| +0#0000000&@3|\+0#e000e06&|%+0#0000000&|A|\| |%|#|[|%|.|%|#|]|\| |%|f|:+0#e000e06&|%+0#0000000&|l|:+0#e000e06&|\+0#0000000&| |%|m|,+0#e000e06&|%+0#0000000&|-|Z|\| |%|#|[|%|.|%|#|]|\| |%|p|^|,+0#e000e06&|%+0#0000000&|C|\| |%|#|[|%|.|%|#|]|\| |%|#|%|m| @7
+@75
+> @74
+|"+0#0000e05&| |U|n|r|e|p|o|r|t|e|d| |i|s@1|u|e| |(|d|o|u|b|l|e| |b|a|c|k|s|l|a|s|h|)| +0#0000000&@37
 @75
 |s+0#af5f00255&|e|t|l|o|c|a|l| +0#0000000&|c+0#e000e06&|o|m|=+0#af5f00255&|s+0#0000000&|1|:+0#e000e06&|/+0#0000000&|*|,+0#e000e06&|m+0#0000000&|b|:+0#e000e06&|*+0#0000000&|,+0#e000e06&|e+0#0000000&|x|:+0#e000e06&|*+0#0000000&|/|,+0#e000e06&|b+0#0000000&|:+0#e000e06&|-+0#0000000&@1|,+0#e000e06&|b+0#0000000&|e|:+0#e000e06&|\+0#0000000&@1| @34
 |e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|F|o@1|"| +0#0000000&@64
 |s+0#af5f00255&|e|t|l|o|c|a|l| +0#0000000&|i+0#e000e06&|n|c|l|u|d|e|=+0#af5f00255&|^+0#0000000&|\@1|s|*|\@1|%|(|s|o|\@1|%|[|u|r|c|e|]|\@2|||r|u|\@1|%|[|n|t|i|m|e|]|\@1|)|[|!|\| |]|\| |*|\@1|z|s|[|^|\@1|||]|*
->e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|F|o@1|"| +0#0000000&@64
+|e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|F|o@1|"| +0#0000000&@64
 |s+0#af5f00255&|e|t| +0#0000000&|q+0#e000e06&|u|o|t|e@1|s|c|a|p|e|=+0#af5f00255&|\+0#0000000&@1| @56
 |e+0#af5f00255&|c|h|o| +0#0000000&|"+0#e000002&|F|o@1|"| +0#0000000&@64
 |s+0#af5f00255&|e|t| +0#0000000&|q+0#e000e06&|u|o|t|e@1|s|c|a|p|e|=+0#af5f00255&|\+0#0000000&| @57
@@ -11,10 +17,4 @@
 @75
 @75
 |"+0#0000e05&| |I|s@1|u|e| |#|1|6|9|1|3| |(|v|i|m| |s|y|n|t|a|x|:| |s|e|t| |l|a|n|g|m|a|p| |m|a|y| |h|a|v|e| |w|r|o|n|g| |h|i|g|h|l|i|g|h|t|)| +0#0000000&@9
-@75
-|s+0#af5f00255&|e|t| +0#0000000&|l+0#e000e06&|a|n|g|m|a|p|++0#af5f00255&|=|Ф+0#0000000&|Ы|В|А|П|Р|О|Л|Д|Ж|Э|Ё|;|A|S|D|F|G|H|J|K|L|\@1|:+0#e000e06&|\+0#0000000&@1|"|\@1||| @30
-|s+0#af5f00255&|e|t| +0#0000000&|l+0#e000e06&|a|n|g|m|a|p|++0#af5f00255&|=|Я+0#0000000&|Ч|С|М|И|Т|Ь|Б|Ю|;|Z|X|C|V|B|N|M|<+0#e000e06&|>| +0#0000000&@42
-@75
-|s+0#af5f00255&|e|t| +0#0000000&|l+0#e000e06&|a|n|g|m|a|p|++0#af5f00255&|=|Ф+0#0000000&|Ы|В|А|П|Р|О|Л|Д|Ж|Э|Ё|;|A|S|D|F|G|H|J|K|L|\@1|:+0#e000e06&|\+0#0000000&@1|"|\@1||| @30
-@6|\+0#e000e06&| +0#0000000&|l+0#e000e06&|a|n|g|m|a|p|++0#af5f00255&|=|Я+0#0000000&|Ч|С|М|И|Т|Ь|Б|Ю|;|Z|X|C|V|B|N|M|<+0#e000e06&|>| +0#0000000&@38
-@57|1|0|8|,|1| @8|9|7|%| 
+@57|1|0|8|,|0|-|1| @6|9|1|%|