### 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
}
			if (!b->parent_function->can_discard) {
				_set_error(vformat(RTR("Use of '%s' is not allowed here."), "discard"));
				return ERR_PARSE_ERROR;
			}
			ControlFlowNode *flow = alloc_node<ControlFlowNode>();
			flow->flow_op = FLOW_OP_DISCARD;
			pos = _get_tkpos();
			tk = _get_token();
			if (tk.type != TK_SEMICOLON) {
				_set_expected_after_error(";", "discard");
				return ERR_PARSE_ERROR;
			}
			p_block->statements.push_back(flow);
		} else if (tk.type == TK_CF_BREAK) {
			if (!p_can_break) {
				_set_error(vformat(RTR("'%s' is not allowed outside of a loop or '%s' statement."), "break", "switch"));
				return ERR_PARSE_ERROR;
			}
			ControlFlowNode *flow = alloc_node<ControlFlowNode>();
			flow->flow_op = FLOW_OP_BREAK;
			pos = _get_tkpos();
			tk = _get_token();
			if (tk.type != TK_SEMICOLON) {
				_set_expected_after_error(";", "break");
				return ERR_PARSE_ERROR;
			}
			p_block->statements.push_back(flow);
			BlockNode *block = p_block;
			while (block) {