patch 9.1.1733: tests: failure when remote_server() fails

Problem:  tests: failure when remote_server() fails
Solution: Catch E240 error when calling remote_server(), Fix syntax
          error in test_wayland.vim

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/testdir/test_clientserver.vim

@@ -12,9 +12,7 @@ source util/shared.vim
 
 " Unlike X11, we need the socket server running if we want to send commands to
 " a server via sockets.
-if v:servername == ""
-  call remote_startserver('VIMSOCKETSERVERTEST')
-endif
+CheckSocketServer
 
 func Check_X11_Connection()
   if has('x11')

src/testdir/test_vim9_builtin.vim

@@ -4,9 +4,7 @@ source util/screendump.vim
 import './util/vim9.vim' as v9
 
 " Socket backend for remote functions require the socket server to be running
-if v:servername == ""
-  call remote_startserver('VIMSOCKETSERVERTEST')
-endif
+CheckSocketServer
 
 " Test for passing too many or too few arguments to builtin functions
 func Test_internalfunc_arg_error()

src/testdir/test_wayland.vim

@@ -55,10 +55,9 @@ func s:CheckXConnection()
   CheckFeature x11
   try
     call remote_send('xxx', '')
+  catch /^Vim\%((\a\+)\)\=:E240:/ " not possible to start a remote server
+      throw 'Skipped: No connection to the X server possible'
   catch
-    if v:exception =~ 'E240:'
-      thrclientserverow 'Skipped: no connection to the X server'
-    endif
     " ignore other errors
   endtry
 endfunc

src/testdir/util/check.vim

@@ -329,6 +329,17 @@ func CheckGithubActions()
   endif
 endfunc
 
+command CheckSocketServer call CheckSocketServer()
+func CheckSocketServer()
+  if v:servername == ""
+    try
+      call remote_startserver('VIMSOCKETSERVERTEST')
+    catch /^Vim\%((\a\+)\)\=:E240:/ " not possible to start a remote server
+      throw 'Skipped: Cannot start remote server'
+    endtry
+  endif
+endfunc
+
 let &cpo = s:cpo_save
 unlet s:cpo_save
 " vim: shiftwidth=2 sts=2 expandtab

src/version.c

@@ -724,6 +724,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1733,
 /**/
     1732,
 /**/