This deprecates all callables that are accepted by
call_user_func($callable) but not by $callable(). In particular:
"self::method"
"parent::method"
"static::method"
["self", "method"]
["parent", "method"]
["static", "method"]
["Foo", "Bar::method"]
[new Foo, "Bar::method"]
RFC: https://wiki.php.net/rfc/deprecate_partially_supported_callables
Closes GH-7446.
Bug 48770 was opened due to conflicting expectations about the behavior of:
call_user_func_array(array($this, 'parent::methodName'), array($arg1,$arg2))
The one reporting the 'bug' seemed to think that since the method name was prefixed with
`parent::`, it should call the method in the superclass of the *class where this code appears*.
However, `$this` might be an instance of a subclass. If so, then it is quite reasonable that
`call_user_func_array` will call the method as defined in the superclass of *the receiver*.
So the 'bug' is not really a bug. Therefore, there is no need for an XFAIL in the tests. They
should just pass.
Amend tests to reflect the actual expected behavior of `call_user_func_array`, not what the
person who reported bug 48770 thought it should be.
Closes GH-5386.
