trivia: add xlsregion_alloc macros

A new macro has been introduced because OOM errors are not handled in the
code.

Needed for tarantool#7932

NO_DOC=internal
NO_TEST=internal
NO_CHANGELOG=internal

src/trivia/util.h

@@ -135,6 +135,8 @@ strnindex(const char *const *haystack, const char *needle, uint32_t len,
 #define xibuf_reserve(p, size)	xalloc_impl((size), ibuf_reserve, (p), (size))
 #define xruntime_memory_alloc(size) \
 	xalloc_impl((size), runtime_memory_alloc, (size))
+#define xlsregion_alloc(p, size, id) \
+	xalloc_impl((size), lsregion_alloc, (p), (size), (id))
 
 #define xregion_alloc_object(region, T) ({					\
 	(T *)xregion_aligned_alloc((region), sizeof(T), alignof(T));		\