### 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 p_node;
}
ShaderLanguage::Node *ShaderLanguage::_parse_and_reduce_expression(BlockNode *p_block, const FunctionInfo &p_function_info) {
	ShaderLanguage::Node *expr = _parse_expression(p_block, p_function_info);
	if (!expr) { 
		return nullptr;
	}
	expr = _reduce_expression(p_block, expr);
	return expr;
}
Error ShaderLanguage::_parse_block(BlockNode *p_block, const FunctionInfo &p_function_info, bool p_just_one, bool p_can_break, bool p_can_continue) {
	while (true) {
		TkPos pos = _get_tkpos();
		Token tk = _get_token();
#ifdef DEBUG_ENABLED
		Token next;
#endif 
		if (p_block && p_block->block_type == BlockNode::BLOCK_TYPE_SWITCH) {
			if (tk.type != TK_CF_CASE && tk.type != TK_CF_DEFAULT && tk.type != TK_CURLY_BRACKET_CLOSE) {
				_set_error(vformat(RTR("A switch may only contain '%s' and '%s' blocks."), "case", "default"));
				return ERR_PARSE_ERROR;
			}
		}
		bool is_struct = shader->structs.has(tk.text);
		bool is_var_init = false;
		bool is_condition = false;
		if (tk.type == TK_CURLY_BRACKET_CLOSE) { 
			if (p_just_one) {
				_set_expected_error("}");
				return ERR_PARSE_ERROR;