MQDescriptor is now a predefined type.

b/31091383 Adding WireMQDescriptor as a hidl type

Change-Id: I8eb7f25dd35bc1e33393b9c563152c3a1551419b
Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/PredefinedType.h b/PredefinedType.h
index 95d7f71..965b786 100644
--- a/PredefinedType.h
+++ b/PredefinedType.h
@@ -25,6 +25,7 @@
 struct PredefinedType : public Type {
     PredefinedType(const char *name);
 
+    void addNamedTypesToSet(std::set<const FQName> &set) const override;
     std::string getCppType(StorageMode mode,
                            std::string *extra,
                            bool specifyNamespaces) const override;