fix use-after-free in txl command (#5980)

* fix use-after-free in txl command

* add cmd_txl test

---------

Co-authored-by: Rot127 <45763064+Rot127@users.noreply.github.com>

Author: Ehab-24

librz/core/cmd/cmd_type.c

@@ -254,13 +254,13 @@ static void types_xrefs_all(RzCore *core) {
 		rz_list_free(types);
 	}
 	RzList *uniq_types = rz_list_uniq(types_list, (RzListComparator)strcmp, NULL);
-	rz_list_free(types_list);
 	rz_list_sort(uniq_types, (RzListComparator)strcmp, NULL);
 	char *typestr;
 	rz_list_foreach (uniq_types, iter, typestr) {
 		rz_cons_printf("%s\n", typestr);
 	}
 	rz_list_free(uniq_types);
+	rz_list_free(types_list);
 }
 
 RZ_IPI RzCmdStatus rz_type_handler(RzCore *core, int argc, const char **argv, RzOutputMode mode) {

test/db/cmd/cmd_txl

@@ -0,0 +1,35 @@
+NAME=txl1
+FILE=bins/mach0/objc-employee
+TIMEOUT=10
+CMDS=<<EOF
+aaa
+txl
+EOF
+EXPECT=<<EOF
+char
+int
+int64_t
+void
+EOF
+RUN
+
+NAME=txl2
+FILE=bins/elf/ls
+TIMEOUT=60
+CMDS=<<EOF
+aaa
+txl
+EOF
+EXPECT=<<EOF
+char
+int
+int64_t
+size_t
+time_t
+tm
+unsigned long
+void
+wchar_t
+wint_t
+EOF
+RUN