### 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
ERR_FAIL_V(nullptr); 
			}
#ifdef DEBUG_ENABLED
			if (check_warnings && HAS_WARNING(ShaderWarning::FLOAT_COMPARISON_FLAG) && (op == OP_EQUAL || op == OP_NOT_EQUAL) &&
					(!expression[i - 1].is_op && !expression[i + 1].is_op) &&
					(expression[i - 1].node->get_datatype() == TYPE_FLOAT && expression[i + 1].node->get_datatype() == TYPE_FLOAT)) {
				_add_line_warning(ShaderWarning::FLOAT_COMPARISON);
			}
#endif 
			if (priority < min_priority) {
				
				
				next_op = i;
				min_priority = priority;
				is_unary = unary;
				is_ternary = ternary;
			}
		}
		ERR_FAIL_COND_V(next_op == -1, nullptr);
		
		if (is_unary) {
			int expr_pos = next_op;
			while (expression[expr_pos].is_op) {
				expr_pos++;
				if (expr_pos == expression.size()) {
					
					_set_error(RTR("Unexpected end of expression."));
					return nullptr;
				}
			}