runtime(vim): Update base-syntax, match tuples

Tuples were introduced in commit 9cb865e.  See PR #16776.

fixes: #16965
closes: #16935

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

runtime/syntax/testdir/input/vim_lambda.vim

@@ -1,4 +1,7 @@
 " Vim lambda expressions
+" VIM_TEST_SETUP hi link vimLambdaOperator Todo
+" VIM_TEST_SETUP hi link vimLambdaBrace    Todo
+" VIM_TEST_SETUP hi link vimFuncParam	   Identifier
 
 
 let expr = 42
@@ -56,12 +59,17 @@ let Foo = {x,
       \ z -> expr}
 
 let Foo = {
+      "\ comment
       \ x,
+      "\ comment
       \ y,
+      "\ comment
       \ z
+      "\ comment
       \ ->
       "\ comment
       \ expr
+      "\ comment
       \ }
 
 let Foo = {-> [
@@ -94,6 +102,7 @@ let Foo = {-> {-> #{
       \ b: 83
       \}}}
 
+
 " :help lambda
 
 :let F = {arg1, arg2 -> arg1 - arg2}