Working commit for constant scalar expressions (with constants).
Tests will follow.
Fixed mem leaks, added tests and ternary operator
Fatal error about self referencing constants fixed
converted several switches to ifs and made more opcache friendly
Whitespace fix
Added a few more operators
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.
Merge branch 'const_scalar_exprs' of github.com:bwoebi/php-src into const_scalar_exprs

* 'const_scalar_exprs' of github.com:bwoebi/php-src:
  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.

Conflicts:
	Zend/Makefile.am
	configure.in
	win32/build/config.w32
Constant expressions refactoring
Renaming
Moved arrays again to "static_scalar:" & little cleanup
Merge branch 'PHP-5.6' of git.php.net:php-src into PHP-5.6

* 'PHP-5.6' of git.php.net:php-src:
  Fixed bug #53879 (DateTime::createFromFormat() fails to parse cookie expiration date)
Fixed "Forward Transition" construction of DateTime objects.

This fixes the issue in
https://wiki.php.net/rfc/datetime_and_daylight_saving_time#forward_transitions
There is a period during transition to DST where a time (such as 02:30) does
not exist. PHP already calculated the correct timestamp for this, but failed to
"rounded forward" to the existing correct hour value.
Always reset those parameters.
Fixed forward transitions in diffs.
Group those tests a bit better, as some of the bd ones wanted a "ST" feature that doesn't exist yet.
Split up tests into their different categories.
Fix backwards transition diffs.
Move add/sub to timelib.
Fixed a few DST changeover issues.