Introduce call_dump_config() indirection (#2325)

esphome/core/application.cpp

@@ -105,7 +105,7 @@ void Application::loop() {
 #endif
     }
 
-    this->components_[this->dump_config_at_]->dump_config();
+    this->components_[this->dump_config_at_]->call_dump_config();
     this->dump_config_at_++;
   }
 }

esphome/core/component.cpp

@@ -64,8 +64,9 @@ bool Component::cancel_timeout(const std::string &name) {  // NOLINT
 }
 
 void Component::call_loop() { this->loop(); }
-
 void Component::call_setup() { this->setup(); }
+void Component::call_dump_config() { this->dump_config(); }
+
 uint32_t Component::get_component_state() const { return this->component_state_; }
 void Component::call() {
   uint32_t state = this->component_state_ & COMPONENT_STATE_MASK;

esphome/core/component.h

@@ -148,8 +148,12 @@ class Component {
   const char *get_component_source() const;
 
  protected:
+  friend class Application;
+
   virtual void call_loop();
   virtual void call_setup();
+  virtual void call_dump_config();
+
   /** Set an interval function with a unique name. Empty name means no cancelling possible.
    *
    * This will call f every interval ms. Can be cancelled via CancelInterval().