### 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
bool found = false;
	for (int i = p_block->statements.size() - 1; i >= 0; i--) {
		if (p_block->statements[i]->type == Node::NODE_TYPE_CONTROL_FLOW) {
			ControlFlowNode *flow = static_cast<ControlFlowNode *>(p_block->statements[i]);
			if (flow->flow_op == p_op) {
				found = true;
				break;
			} else {
				if (_find_last_flow_op_in_op(flow, p_op) == OK) {
					found = true;
					break;
				}
			}
		} else if (p_block->statements[i]->type == Node::NODE_TYPE_BLOCK) {
			BlockNode *block = static_cast<BlockNode *>(p_block->statements[i]);
			if (_find_last_flow_op_in_block(block, p_op) == OK) {
				found = true;
				break;
			}
		}
	}
	if (found) {
		return OK;
	}
	return FAILED;
}
static int _get_first_ident_pos(const String &p_code) {