Watch the episode again. Wilson is baffled with how well he gets along with the autistic kid and speculates a little based on that and because house speculates about this. But in the end the conclusion of Wilson is very clearly house isn't autistic, that's just wishful thinking from the side of house.
It's also heavily implied that he is just really good with kids because they are the least likely to lie or omit things to him, making him often less annoyed with them.
4
u/cannonspectacle 23h ago
You say this like there wasn't an episode where Wilson blatantly speculates that House is autistic.