Fix: Console auto-completion should take into account parent classes' prototypes

fixes #9843

lib/cli/consolecommand.cpp

@@ -128,6 +128,7 @@ static char *ConsoleCompleteHelper(const char *word, int state)
 					AddSuggestion(matches, word, pword + "." + field.Name);
 				}
 
+				while (type) {
 					Object::Ptr prototype = type->GetPrototype();
 					Dictionary::Ptr dict = dynamic_pointer_cast<Dictionary>(prototype);
 
@@ -137,6 +138,9 @@ static char *ConsoleCompleteHelper(const char *word, int state)
 							AddSuggestion(matches, word, pword + "." + kv.first);
 						}
 					}
+
+					type = type->GetBaseType();
+				}
 			} catch (...) { /* Ignore the exception */ }
 		}
 	}