Drop dead code
Add zend_add_literal_string

And simplify additional of special literals based on it.
Test use of string names with \ prefix

And drop piece of dead code
Fix detection of write to built-in function for references
Fix ct binding for cuf/cufa functions

It was checking against the wrong AST kind, so the binding was
never actually done.
Drop unused result argument
Removed useless helper
Merge branch 'master' of git.php.net:php-src

* 'master' of git.php.net:php-src:
  Drop unused result argument
  Fix ct binding for cuf/cufa functions
  Fix detection of write to built-in function for references
  Test use of string names with \ prefix
  Add zend_add_literal_string
  Drop dead code
Make QM_ASSIGN, JMP_SET and CAST return IS_TMP_VAR.
add NEWS entry for #68088
Merge branch 'PHP-5.6'

* PHP-5.6:
  add NEWS entry for #68088
add missing NEWS entry for the phpdbg compilation fix
the order of the blocks should be Core, then exts in alphabetical order
Merge branch 'PHP-5.6'

* PHP-5.6:
  the order of the blocks should be Core, then exts in alphabetical order
  add missing NEWS entry for the phpdbg compilation fix
Avoid double checks
Fix bug #68074 Allow to use system cipher list instead of hardcoded value
NEWS
Merge branch 'PHP-5.6'

* PHP-5.6:
  NEWS
  Fix bug #68074 Allow to use system cipher list instead of hardcoded value
typo
Merge branch 'PHP-5.6'

* PHP-5.6:
  typo