Fixed reporting error for type arity

[armanio123]

Fixes #42773

I wasn't able to pinpoint a code for repro but I've been researching about tuples and generics. Where I believe the bug resides.

In the meanwhile, I used this repo for testing: rpavlik/openxr-changelog-maker@7711de4

[jakst]

Not sure if it's interesting anymore @armanio123, but since you mentioned that you couldn't pinpoint a reproduction I figured it might be useful. I bumped into this today when using SWR and started hunting for a minimal reproducible example (before I found this PR). This is what I came up with:

type Args =
  | readonly []
  | readonly [
    {
      myProperty: { subProperty: string }
    }
  ]

const fn = (...args: Args) => {}
fn({ myProperty: '' })

REPL (will throw Uncaught (in promise) Error: Debug Failure. Unhandled Diagnostic: 2626 in the console)