stdlib: Avoid condfails resulting from typed throws adoption #71802
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The standard library's swiftinterface must temporarily remain buildable when
$TypedThrows
evaluates to false since there are still supported Swift 5.11 compilers that did not have the feature enabled by default. Declarations using typed throws in their signatures are guarded in printed swiftinterface files with#if $TypedThrows
and therefore@inlinable
code that uses those declarations must also be conditionalized on$TypedThrows
.Addresses fallout from #69771 and #70971.