patch 8.2.4927: return type of remove() incorrect when using three arguments

Problem:    Return type of remove() incorrect when using three arguments.
Solution:   Use first argument type when there are three arguments.
            (closes #10387)

src/evalfunc.c

@@ -1420,13 +1420,18 @@ ret_argv(int argcount,
     static type_T *
 ret_remove(int argcount,
 	type2_T *argtypes,
-	type_T	**decl_type UNUSED)
+	type_T	**decl_type)
 {
     if (argcount > 0)
     {
 	if (argtypes[0].type_curr->tt_type == VAR_LIST
 		|| argtypes[0].type_curr->tt_type == VAR_DICT)
 	{
+	    if (argcount == 3)
+	    {
+		*decl_type = argtypes[0].type_decl;
+		return argtypes[0].type_curr;
+	    }
 	    if (argtypes[0].type_curr->tt_type
 					     == argtypes[0].type_decl->tt_type)
 		*decl_type = argtypes[0].type_decl->tt_member;

src/testdir/test_vim9_builtin.vim

@@ -3208,12 +3208,11 @@ def Test_remove()
 enddef
 
 def Test_remove_return_type()
-  var l = remove({one: [1, 2], two: [3, 4]}, 'one')
+  var l: list<number> = remove({one: [1, 2], two: [3, 4]}, 'one')
-  var res = 0
+  l->assert_equal([1, 2])
-  for n in l
+
-    res += n
+  var ll: list<number> = remove(range(3), 0, 1)
-  endfor
+  ll->assert_equal([0, 1])
-  res->assert_equal(3)
 enddef
 
 def Test_rename()

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4927,
 /**/
     4926,
 /**/