refactor: CasesOnApp.refineThrough can return a lambda, not an open term #2974
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which also removes an error condition at the use site. While I am at it, I rename a parameter in `GuessLex` that I forgot to rename earlier. The effect will be user-visible (in obscure corner cases) with #2960, so I’ll have the test there. A few places would benefit from a `lambdaTelescopeBounded` that garantees the result has the right length (eta-expanding when necessary). I’ll look into that separately, and left TODOs here.
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which also removes an error condition at the use site.
While I am at it, I rename a parameter in
GuessLexthat I forgot torename earlier.
The effect will be user-visible (in obscure corner cases) with #2960, so
I’ll have the test there.
A few places would benefit from a
lambdaTelescopeBoundedthatgarantees the result has the right length (eta-expanding when
necessary). I’ll look into that separately, and left TODOs here.