Merge branch 'PHP-5.6' of git.php.net:php-src into PHP-5.6

Merge branch 'PHP-5.6' of git.php.net:php-src into PHP-5.6

* 'PHP-5.6' of git.php.net:php-src:
  Updated NEWS for Constant Scalar Exprs RFC
  Moved arrays again to "static_scalar:" & little cleanup
  Renaming
  Constant expressions refactoring
  Removed operations on constant arrays. They make no sense as constants are not allowed to be arrays. And as just properties are allowed to; no problem, we still don't need operations on any constant array.
  Added a few more operators
  Whitespace fix
  converted several switches to ifs and made more opcache friendly
  Fatal error about self referencing constants fixed
  Fixed mem leaks, added tests and ternary operator
  Working commit for constant scalar expressions (with constants). Tests will follow.