[PATCH] D24176: Remove temoprary files.

[Rui Ueyama via llvm-commits]

ruiu created this revision.
ruiu added a reviewer: rnk.
ruiu added a subscriber: llvm-commits.

Previously, we created temporary files using llvm::sys::fs::createTemporaryFile
and remove them using llvm::FileRemover. This is error-prone as it is easy to
forget creating FileRemover instances after creating temporary files.
There is actually a temporary file leak bug.

This patch introduces a new class, TemporaryFile, to manage temporary files
in the RTTI style.

https://reviews.llvm.org/D24176

Files:
  COFF/DriverUtils.cpp

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