### 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
o.op = OP_BIT_XOR;
					break;
				case TK_QUESTION:
					o.op = OP_SELECT_IF;
					break;
				case TK_COLON:
					o.op = OP_SELECT_ELSE;
					break;
				default: {
					_set_error(vformat(RTR("Invalid token for the operator: '%s'."), get_token_text(tk)));
					return nullptr;
				}
			}
			expression.push_back(o);
		} else {
			_set_tkpos(pos); 
			break;
		}
	}
	
	while (expression.size() > 1) {
		int next_op = -1;
		int min_priority = 0xFFFFF;
		bool is_unary = false;
		bool is_ternary = false;
		for (int i = 0; i < expression.size(); i++) {
			if (!expression[i].is_op) {
				continue;
			}
			bool unary = false;