lang: lex: convert lexer token queue to b_queue

lang/include/ivy/lang/lex.h

@@ -4,6 +4,7 @@
 #include <ivy/line-source.h>
 #include <ivy/misc.h>
 #include <ivy/status.h>
+#include <blue/core/queue.h>
 
 enum ivy_token_type {
 	IVY_TOK_NONE = 0,
@@ -103,7 +104,7 @@ enum ivy_symbol {
 
 struct ivy_token {
 	enum ivy_token_type t_type;
-	struct ivy_token *t_next;
+	b_queue_entry t_entry;
 
 	union {
 		enum ivy_keyword t_keyword;