patch 8.2.4314: test fails where lines are skipped

Problem:    Test fails where lines are skipped.
Solution:   Only give an error when not skipping commands.
diff --git a/src/testdir/test_vim9_script.vim b/src/testdir/test_vim9_script.vim
index 4fa71d9..37459a7 100644
--- a/src/testdir/test_vim9_script.vim
+++ b/src/testdir/test_vim9_script.vim
@@ -1228,6 +1228,11 @@
 
   assert_fails('vim9script', 'E1038:')
   v9.CheckDefFailure(['vim9script'], 'E1038:')
+
+  # no error when skipping
+  if has('nothing')
+    vim9script
+  endif
 enddef
 
 def Test_script_var_shadows_function()
diff --git a/src/version.c b/src/version.c
index 7dbefa4..a071c5f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4314,
+/**/
     4313,
 /**/
     4312,
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 0bf47e2..d0479a5 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -3139,8 +3139,13 @@
 		    break;
 
 	    case CMD_vim9script:
-		    emsg(_(e_vim9script_can_only_be_used_in_script));
-		    goto erret;
+		    if (cctx.ctx_skip != SKIP_YES)
+		    {
+			emsg(_(e_vim9script_can_only_be_used_in_script));
+			goto erret;
+		    }
+		    line = (char_u *)"";
+		    break;
 
 	    case CMD_global:
 		    if (check_global_and_subst(ea.cmd, p) == FAIL)