--- old/src/hotspot/share/oops/symbol.hpp	2019-03-11 14:26:26.618354872 +0100
+++ new/src/hotspot/share/oops/symbol.hpp	2019-03-11 14:26:26.406354875 +0100
@@ -202,6 +202,9 @@
   bool starts_with(const char* prefix) const {
     return starts_with(prefix, (int) strlen(prefix));
   }
+  bool is_Q_signature() const;
+  Symbol* fundamental_name(TRAPS);
+  bool is_same_fundamental_type(Symbol*) const;
 
   // Tests if the symbol starts with the given prefix.
   int index_of_at(int i, const char* str, int len) const;
@@ -237,6 +240,7 @@
   void print_utf8_on(outputStream* st) const;
   void print_on(outputStream* st) const;         // First level print
   void print_value_on(outputStream* st) const;   // Second level print.
+  void print_Qvalue_on(outputStream* st) const;  // Second level print for Q-types.
 
   // printing on default output stream
   void print()         { print_on(tty);       }