Add protected non-virtual destructor in generated classes

tests/stresstests/celsius-thermometer-adaptor.h

@@ -27,6 +27,8 @@ protected:
         object_.registerMethod("getCurrentTemperature").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getCurrentTemperature(); });
     }
 
+    ~thermometer_adaptor() = default;
+
 private:
     virtual uint32_t getCurrentTemperature() = 0;
 

tests/stresstests/celsius-thermometer-proxy.h

@@ -26,6 +26,8 @@ protected:
     {
     }
 
+    ~thermometer_proxy() = default;
+
 public:
     uint32_t getCurrentTemperature()
     {

tests/stresstests/concatenator-adaptor.h

@@ -27,6 +27,8 @@ protected:
         object_.registerSignal("concatenatedSignal").onInterface(INTERFACE_NAME).withParameters<std::string>();
     }
 
+    ~concatenator_adaptor() = default;
+
 public:
     void emitConcatenatedSignal(const std::string& concatenatedString)
     {

tests/stresstests/concatenator-proxy.h

@@ -26,6 +26,8 @@ protected:
         proxy_.uponSignal("concatenatedSignal").onInterface(INTERFACE_NAME).call([this](const std::string& concatenatedString){ this->onConcatenatedSignal(concatenatedString); });
     }
 
+    ~concatenator_proxy() = default;
+
     virtual void onConcatenatedSignal(const std::string& concatenatedString) = 0;
 
     virtual void onConcatenateReply(const std::string& result, const sdbus::Error* error) = 0;

tests/stresstests/fahrenheit-thermometer-adaptor.h

@@ -27,6 +27,8 @@ protected:
         object_.registerMethod("getCurrentTemperature").onInterface(INTERFACE_NAME).implementedAs([this](){ return this->getCurrentTemperature(); });
     }
 
+    ~thermometer_adaptor() = default;
+
 private:
     virtual uint32_t getCurrentTemperature() = 0;
 
@@ -55,6 +57,8 @@ protected:
         object_.registerMethod("destroyDelegateObject").onInterface(INTERFACE_NAME).implementedAs([this](sdbus::Result<>&& result, sdbus::ObjectPath delegate){ this->destroyDelegateObject(std::move(result), std::move(delegate)); }).withNoReply();
     }
 
+    ~factory_adaptor() = default;
+
 private:
     virtual void createDelegateObject(sdbus::Result<sdbus::ObjectPath>&& result) = 0;
     virtual void destroyDelegateObject(sdbus::Result<>&& result, sdbus::ObjectPath delegate) = 0;

tests/stresstests/fahrenheit-thermometer-proxy.h

@@ -26,6 +26,8 @@ protected:
     {
     }
 
+    ~thermometer_proxy() = default;
+
 public:
     uint32_t getCurrentTemperature()
     {
@@ -57,6 +59,8 @@ protected:
     {
     }
 
+    ~factory_proxy() = default;
+
 public:
     sdbus::ObjectPath createDelegateObject()
     {