Issue #3500568: Deprecate ConfigProviderBase drupalGetPath() and drupalGetProfile() methods

Closes #3500568

src/Plugin/ConfigProviderBase.php

@@ -293,8 +293,14 @@ abstract class ConfigProviderBase extends PluginBase implements ConfigProviderIn
    * @return string
    *   The path to the requested item or an empty string if the item is not
    *   found.
+   *
+   * @deprecated in config_provider:3.0.0-alpha2 and is removed from config_provider:3.1.0.
+   *   ConfigProviderBase::extensionPathResolver::getPath() should be used
+   *   instead.
+   * @see https://www.drupal.org/project/config_provider/issues/3500568
    */
   protected function drupalGetPath(string $type, string $name) {
+    @trigger_error(__METHOD__ . '() is deprecated in config_provider:3.0.0-alpha2 and is removed from config_provider:3.1.0. ConfigProviderBase::extensionPathResolver::getPath() should be used instead. See https://www.drupal.org/project/config_provider/issues/3500568', E_USER_DEPRECATED);
     return $this->extensionPathResolver->getPath($type, $name);
   }
 
@@ -305,8 +311,13 @@ abstract class ConfigProviderBase extends PluginBase implements ConfigProviderIn
    *   The name of the installation profile or NULL if no installation profile
    *   is currently active. This is the case for example during the first steps
    *   of the installer or during unit tests.
+   *
+   * @deprecated in config_provider:3.0.0-alpha2 and is removed from config_provider:3.1.0.
+   *   ConfigProviderBase::installProfile should be used instead.
+   * @see https://www.drupal.org/project/config_provider/issues/3500568
    */
   protected function drupalGetProfile() {
+    @trigger_error(__METHOD__ . '() is deprecated in config_provider:3.0.0-alpha2 and is removed from config_provider:3.1.0. ConfigProviderBase::installProfile should be used instead. See https://www.drupal.org/project/config_provider/issues/3500568', E_USER_DEPRECATED);
     return $this->installProfile;
   }