Flaky simple-multi-def-test on windows

[soulomoon]

500 iterations successful in Macos
But the test case is fairy broken on windows, expecially if the load is high.
Only 6 iterations and I have the following error.

                             FAIL (50.62s)
        ghcide\test\exe\Config.hs:149:
        Expecting exactly one definition, got 0

[soulomoon]

Also sometime there is

FAIL (51.08s)
        ghcide\test\exe\CradleTests.hs:190:
        Got unexpected diagnostics for Uri {getUri = "file:///C:/Users/ares/AppData/Local/Temp/hls-test-root/extra-dir-855397965153/a/A.hs"} got [Diagnostic {_range = Range {_start = Position {_line = 0, _character = 0}, _end = Position {_line = 1, _character = 0}}, _severity = Just DiagnosticSeverity_Error, _code = Nothing, _codeDescription = Nothing, _source = Just "compiler", _message = "C:\\Users\\ares\\AppData\\Local\\Temp\\hls-test-root\\.cache\\ghcide\\a-1.0.0-inplace-31dd3c0e3611799597711e4d9677c41f678e7865\\ext2B3D: renameFile:renamePath:MoveFileEx \"\\\\\\\\?\\\\C:\\\\Users\\\\ares\\\\AppData\\\\Local\\\\Temp\\\\hls-test-root\\\\.cache\\\\ghcide\\\\a-1.0.0-inplace-31dd3c0e3611799597711e4d9677c41f678e7865\\\\ext2B3D\" Just \"\\\\\\\\?\\\\C:\\\\Users\\\\ares\\\\AppData\\\\Local\\\\Temp\\\\hls-test-root\\\\.cache\\\\ghcide\\\\a-1.0.0-inplace-31dd3c0e3611799597711e4d9677c41f678e7865\\\\A.hie\": permission denied (Access is denied.)", _tags = Nothing, _relatedInformation = Just [DiagnosticRelatedInformation {_location = Location {_uri = Uri {getUri = "file:///C:/Users/ares/AppData/Local/Temp/hls-test-root/extra-dir-855397965153/a/A.hs"}, _range = Range {_start = Position {_line = 0, _character = 0}, _end = Position {_line = 1, _character = 0}}}, _message = "GetModIfaceFromDisk"}], _data_ = Nothing}]

maybe related to dhall-lang/dhall-haskell#1904 haskell/directory#109
code in our code base

haskell-language-server/ghcide/src/Development/IDE/Core/Compile.hs

Line 822 in cec35a3

(write tempFilePath >>= \x -> renameFile tempFilePath targetPath >> atomically (resetInterfaceStore se (toNormalizedFilePath' targetPath)) >> pure x)