Merge branch 'main' of https://github.com/github/codeql into oscarsj/merge-back-rc-3.21

Author: oscarsj

cpp/downgrades/770002bb02322e04fa25345838ce6e82af285a0b/in_trap.ql

@@ -0,0 +1,21 @@
+class Element extends @element {
+  string toString() { none() }
+}
+
+class Trap extends @trap {
+  string toString() { none() }
+}
+
+class Tag extends @tag {
+  string toString() { none() }
+}
+
+from Element e, Trap trap
+where
+  in_trap_or_tag(e, trap)
+  or
+  exists(Tag tag |
+    in_trap_or_tag(e, tag) and
+    trap_uses_tag(trap, tag)
+  )
+select e, trap