Merge: Fixed safe-call missed cast when reference primitive data types

This patch fixed the issue #2804 where the compiler didn't add the cast from primitive data to
`val *` when accessed by safe-call syntax.

Signed-off-by: Louis-Vincent Boudreault <lv.boudreault95@gmail.com>

Pull-Request: #2806
Reviewed-by: Jean Privat <jean@pryen.org>