Summary:
This appears to break some bots, when getToolsPath fails to find some or
all of the tools (for example, an incomplete GnuWin32 installation).
Reviewers: zturner, modocache
Subscribers: sanjoy, llvm-commits
Differential Revision: https://reviews.llvm.org/D38115
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313854 91177308-0d34-0410-b5e6-96231b3b80d8