[Support] Use FILE_SHARE_DELETE to fix RemoveFileOnSignal on Windows
Summary:
Tools like clang that use RemoveFileOnSignal on their output files
weren't actually able to clean up their outputs before this change. Now
the call to llvm::sys::fs::remove succeeds and the temporary file is
deleted. This is a stop-gap to fix clang before implementing the
solution outlined in PR34070.
Reviewers: davide
Subscribers: llvm-commits, hiraditya
Differential Revision: https://reviews.llvm.org/D36337
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310137
91177308-0d34-0410-b5e6-
96231b3b80d8
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