Parse 'super' keyword.

src/prettyprinter.cc

Index: src/prettyprinter.cc
diff --git a/src/prettyprinter.cc b/src/prettyprinter.cc
index 19b0290758cb05d1e9ca2305ae05d58886fa80ef..0f5d225b650437e99d3e69ac120c8ce467a4ea86 100644
--- a/src/prettyprinter.cc
+++ b/src/prettyprinter.cc
@@ -447,6 +447,11 @@ void PrettyPrinter::VisitThisFunction(ThisFunction* node) {
 }
 
 
+void PrettyPrinter::VisitSuperReference(SuperReference* node) {
+  Print("<super-reference>");
+}
+
+
 const char* PrettyPrinter::Print(AstNode* node) {
   Init();
   Visit(node);
@@ -1145,6 +1150,11 @@ void AstPrinter::VisitThisFunction(ThisFunction* node) {
   IndentedScope indent(this, "THIS-FUNCTION");
 }
 
+
+void AstPrinter::VisitSuperReference(SuperReference* node) {
+  IndentedScope indent(this, "SUPER-REFERENCE");
+}
+
 #endif  // DEBUG
 
 } }  // namespace v8::internal