Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
  Fixed incorrect behavior of internal memory debugger

Author: dstogov

Zend/zend_alloc.c

@@ -2065,6 +2065,7 @@ static zend_long zend_mm_find_leaks(zend_mm_heap *heap, zend_mm_chunk *p, uint32
 			}
 		}
 		p = p->next;
+		i = ZEND_MM_FIRST_PAGE;
 	} while (p != heap->main_chunk);
 	return count;
 }