patch 8.2.4117: Vim9: wrong white space error after using imported item

Problem:    Vim9: wrong white space error after using imported item.
Solution:   Don't skip over white space. (closes #9544)

src/eval.c

@@ -6001,7 +6001,6 @@ handle_subscript(
 	    idx = find_exported(rettv->vval.v_number, exp_name, &ufunc, &type,
 						  evalarg->eval_cctx, verbose);
 	    **arg = cc;
-	    *arg = skipwhite(*arg);
 
 	    if (idx < 0 && ufunc == NULL)
 	    {

src/testdir/test_vim9_import.vim

@@ -69,6 +69,7 @@ def Test_vim9_import_export()
 
     g:imported_name = expo.exp_name
     expo.exp_name ..= ' Doe'
+    expo.exp_name = expo.exp_name .. ' Maar'
     g:imported_name_appended = expo.exp_name
     g:exported_later = expo.exported
 
@@ -97,7 +98,7 @@ def Test_vim9_import_export()
   assert_equal('Exported', g:imported_func)
   assert_equal('Exported', g:funcref_result)
   assert_equal('John', g:imported_name)
-  assert_equal('John Doe', g:imported_name_appended)
+  assert_equal('John Doe Maar', g:imported_name_appended)
   assert_false(exists('g:name'))
 
   Undo_export_script_lines()

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4117,
 /**/
     4116,
 /**/