patch 9.0.0355: check for uppercase char in autoload name is wrong

Problem:    Check for uppercase char in autoload name is wrong, it checks the
            name of the script.
Solution:   Remove the check. (closes #11031)

src/evalvars.c

@@ -4012,10 +4012,12 @@ var_wrong_func_name(
 {
     // Allow for w: b: s: and t:.  In Vim9 script s: is not allowed, because
     // the name can be used without the s: prefix.
+    // Allow autoload variable.
     if (!((vim_strchr((char_u *)"wbt", name[0]) != NULL
 		    || (!in_vim9script() && name[0] == 's')) && name[1] == ':')
 	    && !ASCII_ISUPPER((name[0] != NUL && name[1] == ':')
-						     ? name[2] : name[0]))
+						     ? name[2] : name[0])
+	    && vim_strchr(name, '#') == NULL)
     {
 	semsg(_(e_funcref_variable_name_must_start_with_capital_str), name);
 	return TRUE;

src/testdir/test_let.vim

@@ -8,6 +8,10 @@ func Test_let()
   let Test104#numvar = function('tr')
   call assert_equal("function('tr')", string(Test104#numvar))
 
+  let foo#tr = function('tr')
+  call assert_equal("function('tr')", string(foo#tr))
+  unlet foo#tr
+
   let a = 1
   let b = 2
 

src/version.c

@@ -707,6 +707,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    355,
 /**/
     354,
 /**/