patch 8.2.2183: Vim9: value of 'edcompatible' and 'gdefault' are used

Problem:    Vim9: value of 'edcompatible' and 'gdefault' are used.
Solution:   Ignore these deprecated options in Vim9 script. (closes #7508)

src/ex_cmds.c

@@ -3778,6 +3778,15 @@ ex_substitute(exarg_T *eap)
 	++cmd;
     else
     {
+#ifdef FEAT_EVAL
+	if (in_vim9script())
+	{
+	    // ignore 'gdefault' and 'edcompatible'
+	    subflags.do_all = FALSE;
+	    subflags.do_ask = FALSE;
+	}
+	else
+#endif
 	if (!p_ed)
 	{
 	    if (p_gd)		// default is global on

src/testdir/test_vim9_cmd.vim

@@ -740,4 +740,17 @@ def Test_magic_not_used()
   bwipe!
 enddef
 
+def Test_gdefault_not_used()
+  new
+  for cmd in ['set gdefault', 'set nogdefault']
+    exe cmd
+    setline(1, 'aaa')
+    s/./b/
+    assert_equal('baa', getline(1))
+  endfor
+
+  set nogdefault
+  bwipe!
+enddef
+
 " vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2183,
 /**/
     2182,
 /**/