Deprecate the old SimpleSAML_Error_NoPassive and SimpleSAML_Error_ProxyCountExceeded exceptions.

lib/SimpleSAML/Error/NoPassive.php

 <?php
 
 
+/**
+ * Class SimpleSAML_Error_NoPassive
+ *
+ * @deprecated This class has been deprecated and will be removed in SimpleSAMLphp 2.0. Please use
+ * SimpleSAML\Module\saml\Error\NoPassive instead.
+ *
+ * @see \SimpleSAML\Module\saml\Error\NoPassive
+ */
 class SimpleSAML_Error_NoPassive extends SimpleSAML_Error_Exception {
 
 }

lib/SimpleSAML/Error/ProxyCountExceeded.php

 <?php
 
 
+/**
+ * Class SimpleSAML_Error_ProxyCountExceeded
+ *
+ * @deprecated This class has been deprecated and will be removed in SimpleSAMLphp 2.0. Please use
+ * SimpleSAML\Module\saml\Error\ProxyCountExceeded instead.
+ *
+ * @see \SimpleSAML\Module\saml\Error\ProxyCountExceeded
+ */
 class SimpleSAML_Error_ProxyCountExceeded extends SimpleSAML_Error_Exception {
 
 }

modules/saml/lib/Error.php

@@ -104,6 +104,7 @@ class sspmod_saml_Error extends SimpleSAML_Error_Exception {
 			// Return the original exception unchanged
 			return $exception;
 
+		// TODO: remove this branch in 2.0
 		} elseif ($exception instanceof SimpleSAML_Error_NoPassive) {
 			$e = new self(
 				\SAML2\Constants::STATUS_RESPONDER,
@@ -111,6 +112,7 @@ class sspmod_saml_Error extends SimpleSAML_Error_Exception {
 				$exception->getMessage(),
 				$exception
 				);
+		// TODO: remove this branch in 2.0
 		} elseif ($exception instanceof SimpleSAML_Error_ProxyCountExceeded) {
 			$e = new self(
 				\SAML2\Constants::STATUS_RESPONDER,