Ensure consistent type for ZEND_MM_ALIGNED_BASE

Now it always produces a void* value across the builtin and bitwise
operator implementations.

Author: tobil4sk

Zend/zend_alloc.c

@@ -177,12 +177,12 @@ typedef zend_ulong zend_mm_bitset;    /* 4-byte or 8-byte integer */
 
 #ifdef PHP_HAVE_BUILTIN_ALIGN_DOWN
 # define ZEND_MM_ALIGNED_BASE(ptr, alignment) \
-	__builtin_align_down((ptr), (alignment))
+	__builtin_align_down((void*)(ptr), (alignment))
 # define ZEND_MM_ALIGNED_OFFSET(ptr, alignment) \
 	(((size_t)(ptr)) - (size_t)ZEND_MM_ALIGNED_BASE(ptr, alignment))
 #else
 # define ZEND_MM_ALIGNED_BASE(ptr, alignment) \
-	(((uintptr_t)(ptr)) & ~((alignment) - 1))
+	((void*)(((uintptr_t)(ptr)) & ~((alignment) - 1)))
 # define ZEND_MM_ALIGNED_OFFSET(ptr, alignment) \
 	(((size_t)(ptr)) & ((alignment) - 1))
 #endif