Added Input_Map entry for backspacing using Shift+Backspace

core/input/input_map.cpp

@@ -511,6 +511,7 @@ const OrderedHashMap<String, List<Ref<InputEvent>>> &InputMap::get_builtins() {
 	// Text Backspace and Delete
 	inputs = List<Ref<InputEvent>>();
 	inputs.push_back(InputEventKey::create_reference(KEY_BACKSPACE));
+	inputs.push_back(InputEventKey::create_reference(KEY_BACKSPACE | KEY_MASK_SHIFT));
 	default_builtin_cache.insert("ui_text_backspace", inputs);
 
 	inputs = List<Ref<InputEvent>>();