Fix a race condition for file o.dat#103
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Sometimes, for an empty "elm-stuff" folder, it happened that the compiler tried to read the file "o.dat" before the background writer had created it.
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Sometimes, for an empty "elm-stuff" folder, it happened that the compiler tried to read the file "o.dat" before the background writer had created it.
This fix narrows the scope of the
BackgroundWriterto just theDetails.loadcall. The followingLamdera.PostCompile.checkandLamdera.TypeHash.buildCheckHashescalls can then assume that the file "o.dat" has been created already.