Fix #5302: Check well-formedness of inferred types #8462
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Named arguments of types are no longer supported, so this was dead code.
We sometimes got the wrong type symbol before, which gave a wring number of arguments. Detected when starting to bounds checking inferred types.
Issue well-formed errors on well-formed trees only if there are no other errors.
odersky
changed the title
smarter
approved these changes
Mar 12, 2020
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Check that type applications in inferred types are well-formed. This means:
It turns out that we cannot guarantee that all inferred types are well-formed by construction. So this check is essential for soundness.