Preview feature AdditionalTypeDirectedConversions fails to compile ProvidedTypes.fs

[dsyme]

Enabling the preview feature AdditionalTypeDirectedConversions causes a regression, discovered here: #12016 (comment)

Adding a bug to track this issue

artifacts\bin\fsc\Debug\net472\fsc.exe C:\GitHub\dsyme\fsharp\tests\service\data\TestTP\ProvidedTypes.fsi C:\GitHub\dsyme\fsharp\tests\service\data\TestTP\ProvidedTypes.fs --langversion:preview

[dsyme]

Fix is in #12028