Merge branch 'PHP-5.6'

* PHP-5.6:
  Fixed type mismatch

Author: dstogov

ext/opcache/zend_shared_alloc.h

@@ -91,7 +91,7 @@ typedef struct _handler_entry {
 
 typedef struct _zend_shared_memory_state {
 	int *positions;   /* current positions for each segment */
-	int  shared_free; /* amount of free shared memory */
+	size_t shared_free; /* amount of free shared memory */
 } zend_shared_memory_state;
 
 typedef struct _zend_smm_shared_globals {