Fixing accesibility of overriden method

Author: thk123

jbmc/src/java_bytecode/load_method_by_regex.h

@@ -22,9 +22,9 @@ class load_method_by_regext : public load_extra_methodst
 public:
   explicit load_method_by_regext(const std::string &pattern);
 
-private:
   std::vector<irep_idt>
   extra_methods(const symbol_tablet &symbol_table) const override;
+private:
 
   std::regex regex;