Proof-of-Concept: Excess property checking for nested intersection and union #23798
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Proof-of-concept excess property checking for nesting intersection and union (independent of discriminant properties). See
tests/cases/compiler/nestedExcessPropertyChecks.ts
for some examples. Just putting this out there incase it is of interest to anyone.Please feel free to check it out and have a go, though the error messages are not good and the code is slow and ugly.