Reid Kleckner d03f9f4016 [FS] Report errors from llvm::sys::fs::rename on Windows
Previously we would always report success, which is pretty bogus.

I'm too lazy to write a test where rename will portably fail on all
platforms. I'm just trying to fix breakage introduced by r234597, which
happened to tickle this.

llvm-svn: 234611
2015-04-10 17:20:45 +00:00
..