[5.7][stdlib] use @_transparent in an appropriate spot #59645
Merged
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This is is a cherry-pick of #59327 to the 5.7 branch.
One of the equality operator definitions on Optional was inconsistently
@inlinable
, while its peers are@_transparent
. As a consequence, the detailed diagnostics surrounding Optional with==
and!=
differ strangely based on minute details.@_transparent
makes more sense than@inline(__always)
in the specific case of==
andOptional
.Resolves rdar://95690105