support intersection types in mirrorCompanionRef #15192
Merged
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Introduces
MirrorSource
- i.e. an abstract representation of what is used to create the mirror. This means only one traversal of types compared to usingwhyNotAcceptableType
. It also is extensible, i.e. allowing us to add new kinds of types supporting mirrors, such as generic tuple types.This also fixes an uncaught bug where we could summon a mirror for
::[Int] & Some[Int]
, which would only fail at runtimecloses #15190