[llvm] [llvm][Support][Windows] Avoid crash calling remove_directories() (PR #118677)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

> > Unlike the article, where the crash was in some third party extension, this appears to be a built-in OS component which (I would hope) doesn't have these kinds of bugs.
> 
> The article refers buggy Contoso shell extensions. But it seems Contoso is an alias of Microsoft.

No, Contoso is not an alias of Microsoft. It's a placeholder name of any random third party company/project, used in these docs to not need to name the actual third parties involved.

https://github.com/llvm/llvm-project/pull/118677