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Backport "Avoid crash arising from trying to find conversions from polymorphic singleton types" to LTS #20740

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Merged
merged 2 commits into from
Jun 23, 2024
Merged

Backport "Avoid crash arising from trying to find conversions from polymorphic singleton types" to LTS #20740

merged 2 commits into from
Jun 23, 2024

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WojciechMazur
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Backports #18760 to the LTS branch.

PR submitted by the release tooling.
[skip ci]

odersky added 2 commits June 23, 2024 13:08
@odersky @WojciechMazur
Avoid crash arising from trying to find conversions from polymorphic …
e90d376 
…singleton types

This is an alternative fix for #18695, which already got fixed in a different way by #18719.
This PR adds the actual tests, and leaves in the fix as a defensive measure in case the situation
arises by some other means than the one foxed in #18719.

[Cherry-picked f995a8c]
@odersky @WojciechMazur
Add test cases
a27caa4 
[Cherry-picked 125612f]
Base automatically changed from lts-18759 to lts-3.3 June 23, 2024 22:40
@WojciechMazur
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No regressions detected in the community build up to lts-19083.

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@WojciechMazur WojciechMazur merged commit 8f7b8a7 into lts-3.3 Jun 23, 2024
@WojciechMazur WojciechMazur deleted the lts-18760 branch June 23, 2024 22:40
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@WojciechMazur @odersky