Ignore CORRADE_DEPRECATED_*() macros in Doxygen.

Doxyfile

@@ -2004,7 +2004,8 @@ INCLUDE_FILE_PATTERNS  =
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
 PREDEFINED             = DOXYGEN_GENERATING_OUTPUT \
-    CORRADE_DEPRECATED(message)= CORRADE_DEPRECATED_ENUM(message)= \
+    CORRADE_DEPRECATED(message)= CORRADE_DEPRECATED_ALIAS(message)= \
+    CORRADE_DEPRECATED_ENUM(message)= \
     MAGNUM_BUILD_DEPRECATED \
     MAGNUM_EXPORT= \
     MAGNUM_AUDIO_EXPORT= \