add super nodes

ql/src/codeql_ql/ast/Ast.qll

@@ -1523,6 +1523,13 @@ class ThisAccess extends Identifier {
   override string getAPrimaryQlClass() { result = "ThisAccess" }
 }
 
+/** A use of `super`. */
+class Super extends TSuper, Expr {
+  Super() { this = TSuper(_) }
+
+  override string getAPrimaryQlClass() { result = "SuperAccess" }
+}
+
 /** An access to `result`. */
 class ResultAccess extends Identifier {
   ResultAccess() { any(Generated::Result r).getParent() = id }

ql/src/codeql_ql/ast/internal/AstNodes.qll

@@ -24,6 +24,7 @@ newtype TAstNode =
   TExprAggregate(Generated::Aggregate agg) {
     agg.getChild(_) instanceof Generated::ExprAggregateBody
   } or
+  TSuper(Generated::SuperRef sup) or
   TIdentifier(Generated::Variable var) or
   TAsExpr(Generated::AsExpr asExpr) { asExpr.getChild(1) instanceof Generated::VarName } or
   TPredicateCall(Generated::CallOrUnqualAggExpr call) or
@@ -63,7 +64,7 @@ class TBinOpExpr = TAddSubExpr or TMulDivModExpr;
 
 class TExpr =
   TBinOpExpr or TLiteral or TAggregate or TExprAggregate or TIdentifier or TInlineCast or TCall or
-      TUnaryExpr or TExprAnnotation or TDontCare or TRange or TSet or TAsExpr;
+      TUnaryExpr or TExprAnnotation or TDontCare or TRange or TSet or TAsExpr or TSuper;
 
 class TCall = TPredicateCall or TMemberCall or TNoneCall or TAnyCall;
 
@@ -154,6 +155,8 @@ Generated::AstNode toGenerated(AST::AstNode n) {
   n = TNoneCall(result)
   or
   n = TAnyCall(result)
+  or
+  n = TSuper(result)
 }
 
 class TPredicate = TCharPred or TClasslessPredicate or TClassPredicate;