runtime(vim): Update base syntax, fix :map termination in :command RHS

Ensure :map (and :abbreviate) terminate at | when included in :command
replacement strings containing commands separated by line continuations.

Signed-off-by: Doug Kearns <dougkearns@gmail.com>

runtime/syntax/testdir/input/vim_ex_abbreviate.vim

@@ -1,21 +1,24 @@
 " Vim :abbreviate commands
+" VIM_TEST_SETUP hi link vimMapLhs Identifier
+" VIM_TEST_SETUP hi link vimMapRhs Todo
+" VIM_TEST_SETUP hi link vimMapRhsContinue Todo
 
 
 abbrev <buffer> foo foobar
 cabbrev <buffer> cfoo cfoobar
-iabbrev <buffer> ifoo cfoobar
+iabbrev <buffer> ifoo ifoobar
 
 abbrev <expr> <buffer> foo foobar
 cabbrev <expr> <buffer> cfoo cfoobar
-iabbrev <expr> <buffer> ifoo cfoobar
+iabbrev <expr> <buffer> ifoo ifoobar
 
 noreabbrev <buffer> foo foobar
 cnoreabbrev <buffer> cfoo cfoobar
-inoreabbrev <buffer> ifoo cfoobar
+inoreabbrev <buffer> ifoo ifoobar
 
 abbrev <expr> <buffer> foo foobar
 cabbrev <expr> <buffer> cfoo cfoobar
-iabbrev <expr> <buffer> ifoo cfoobar
+iabbrev <expr> <buffer> ifoo ifoobar
 
 unabbrev <buffer> foo
 cunabbrev <buffer> cfoo
@@ -25,3 +28,27 @@ abclear <buffer>
 cabclear <buffer>
 iabclear <buffer>
 
+
+" Multiline RHS
+
+abbrev foo
+      \ foobar
+
+abbrev foo
+      \
+      \ foobar
+
+abbrev foo
+      "\ comment
+      \ foobar
+
+abbrev foo
+      "\ comment
+      \ foo
+      "\ comment
+      \bar
+
+abbrev lhs
+  "\ comment (matches as RHS but harmless)
+echo "clear"
+

runtime/syntax/testdir/input/vim_ex_command.vim

@@ -161,3 +161,10 @@ command -range=% -nargs=? -bang Tb {
 
 command -range=% -nargs=? -bang Tb :<line1>,<line2>s/\v"[^"]*"/\=substitute(submatch(0), " ", "•", "g")/ge
 
+
+" Unreported issue (:map with trailing bar in replacement text)
+command! Foo
+      \ map lhs rhs |
+      \ abbreviate foo bar |
+      \ echo "Foo"
+

runtime/syntax/testdir/input/vim_ex_map.vim

@@ -1,4 +1,7 @@
 " Vim :map commands
+" VIM_TEST_SETUP hi link vimMapLhs Identifier
+" VIM_TEST_SETUP hi link vimMapRhs Todo
+" VIM_TEST_SETUP hi link vimMapRhsContinue Todo
 
 
 map!