Backport "Do not propagate TypeErrors of ops from TypeComparer#tryAlso" to LTS
#21169
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In pos-deep-subtype/i21015.scala:30, we ask the TypeComparer if `M1[Int] <:< M1[A]` `isMatchingApply` first tries `isSubArgs` which succeeds, but then also checks if a weaker constraint is generated by `recur(tp1.superTypeNormalized, tp2.superTypeNormalized)`. The latter throws a `RecursionOverflow` which, before the changes, bypassed the former successful check, and failed the overall subtype test. Fix #21015 [Cherry-picked 2d0e373]
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No regressions detected in the community build up to lts-21070. |
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Backports #21070 to the LTS branch.
PR submitted by the release tooling.