Fix annotation view regression #4938
Merged
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Fixes #4937
#4328 introduced a regression where a null
IVsHierarchywas captured into a binding, where it would cause a nullref: https://github.com/Microsoft/visualfsharp/blob/master/vsintegration/src/FSharp.Editor/LanguageService/LanguageService.fs#L683Here we just short circuit out to the default case (where it would have gone prior to this change) when it is null.