### Godot version

4.0.3

### System information

Win7

### Issue description

![image](https://github.com/godotengine/godot/assets/28286958/abec9d3c-e078-424c-9430-d9fe8897aad6)


### Steps to reproduce

1. Create shader
2. Add uint with hex, e.g. 0xffffu

### Minimal reproduction project

N/A
return ERR_PARSE_ERROR;
								}
							}
							tk = _get_token();
						} else {
							if (constant.array_size > 0 || unknown_size) {
								_set_error(RTR("Expected array initialization."));
								return ERR_PARSE_ERROR;
							} else {
								_set_error(RTR("Expected initialization of constant."));
								return ERR_PARSE_ERROR;
							}
						}
						shader->constants[name] = constant;
						shader->vconstants.push_back(constant);
#ifdef DEBUG_ENABLED
						if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_CONSTANT_FLAG)) {
							used_constants.insert(name, Usage(tk_line));
						}
#endif 
						if (tk.type == TK_COMMA) {
							tk = _get_token();
							if (tk.type != TK_IDENTIFIER) {
								_set_error(RTR("Expected an identifier after type."));
								return ERR_PARSE_ERROR;
							}
							name = tk.text;
							if (_find_identifier(nullptr, false, constants, name)) {
								_set_redefinition_error(String(name));
								return ERR_PARSE_ERROR;