### 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
found = true;
									break;
								}
							}
						}
					}
					if (!found) {
						_set_error(vformat(RTR("Invalid render mode: '%s'."), smode));
						return ERR_PARSE_ERROR;
					}
					shader->render_modes.push_back(mode);
					tk = _get_token();
					if (tk.type == TK_COMMA) {
						
					} else if (tk.type == TK_SEMICOLON) {
						break; 
					} else {
						_set_error(vformat(RTR("Unexpected token: '%s'."), get_token_text(tk)));
						return ERR_PARSE_ERROR;
					}
				}
#ifdef DEBUG_ENABLED
				keyword_completion_context = CF_GLOBAL_SPACE;
#endif 
			} break;
			case TK_STRUCT: {
				ShaderNode::Struct st;
				DataType type;
#ifdef DEBUG_ENABLED
				keyword_completion_context = CF_UNSPECIFIED;