Support references in convert_to_*

conver_to_* functions now accept REFERENCE values, which will be
unwrapped before performing the usual conversion. This is consistent
with convert_

Support references in convert_to_*

conver_to_* functions now accept REFERENCE values, which will be
unwrapped before performing the usual conversion. This is consistent
with convert_scalar_to_number and matches the expected behavior in
a couple random use-sites I checked.

Also includes a couple fixes/cleanups elsewhere and two tests for
cases that previously didn't work (though the reference issue existed
all over the place).

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Merge branch 'PHP-5.6'

* PHP-5.6:
Fix bug #69737 - Segfault when SplMinHeap::compare produces fatal error

Conflicts:
ext/spl/spl_heap.c

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
Fix bug #69737 - Segfault when SplMinHeap::compare produces fatal error

Fix bug #69737 - Segfault when SplMinHeap::compare produces fatal error

Add GC support to SPL heap and PQ

ctor/dtor are now no longer called for insert/delete_top operations,
only for cloning and freeing of the object. Otherwise elements will
have a mini

Add GC support to SPL heap and PQ

ctor/dtor are now no longer called for insert/delete_top operations,
only for cloning and freeing of the object. Otherwise elements will
have a minimum rc of 2 and GC won't be able to free them.

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Use object apply count in var_dump / print_r

Instead of using the array apply count on the debug_info array, use
the object apply count for recursion detection when dumping. This
han

Use object apply count in var_dump / print_r

Instead of using the array apply count on the debug_info array, use
the object apply count for recursion detection when dumping. This
handles recursion in a more generic way and does not require each
debug_info handler to deal with this.

This allows returning a temporary debug_info array, instead of
having to store it in the object (thus delaying destruction of the
values).

Switch SPL debug_info handlers to use a temporary array.

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Remove unnecessary retval members in SPL

This is what the rv params are for. Avoid holding onto values
longer than necessary.

Move zend_object->guards into additional slot of zend_object->properties_table[]. As result size of objects without __get/__set/__unset/__isset magic methods is reduced.

bump year

bump year

Bump year

trailing whitespace removal

first shot remove TSRMLS_* things

fix the comparison return value

fix datatype mismatch

s/PHP 5/PHP 7/

implement #67886

master renames phase 7

master renames phase 1

more fixes to ext/spl

mostly fixes to spl, but also some other

fix macros in the 5 basic extensions

Use reference counting instead of zval duplication

Make they are in the same style of Z_ISREF

Combine HashTable.flags and HashTable.nApplyCount into single 32-bit word