Argo: Error: Expression was too complex to be solved in reasonable time

I’m getting an error Expression was too complex to be solved in reasonable time; consider breaking up the expression into distinct sub-expressions when using Argo to parse GitHub’s pull request JSON into my struct. I have the following decoder:

static var decoder: JSONValue -> PullRequest? {
        return PullRequest.create
            <^> <|"number"
            <*> <|"state"
            <*> <|"title"
            <*> <||"labels"
            <*> <|*"created_at"
            <*> <|*"updated_at"
            <*> <|*"merged_at"
            <*> <|*"closed_at"
            <*> <|["user", "login"]
            <*> <|*"assignee"
            <*> <|["repository", "owner", "login"]
            <*> <|"comments"
            <*> <|"html_url"
            <*> <|*"statuses_url"
}

That is 14 properties for the pull request entity from GitHub’s API (which returns a ton more). I’m currently using the code in #2 as master would lead to the compiler and indexer more or less hanging (they did not but they never finished in reasonable time ^^).

This seems to be caused by a bug in swiftc where only 11 statements per expression works.

Do you have a suggestion for workaround of this? As it would be great to be able to have more than 11 properties 😄