* Restore lit and googletest sources from LLVM 3.7.0
This commit just re-adds sources that were removed somewhere along the
way.
* Pull in googletest & googlemock from LLVM 4.0
Googlemock was introduced in LLVM 4.0, and is used by SPIR-V's tests.
This pulls in the LLVM 4.0 version of GoogleTest and GoogleMock to
replace the external submodules.
LLVM's version of GoolgeTest and GoogleMock have some minor extensions
to work better with LIT for error reporting and producing cleaner test
output.
* Remove external googletest
* Fix lit to handle comment in gtest names
This fix came into LLVM with the updated googletest in a977582dead2
* Ignore raw_fd_ostream errors when not closing
There's some odditites with the changes in the filesystem code that
cause this to error sometimes in unit tests. Until we can dedicate time
to looking into the filesystem code, just swallow that error...
* Fix bot failure
Missed an option change.
* Fixing MSVC build failure
* A cleaner build fix
This should address issues with VS 2019 in a cleaner way.
* Fix build
Chris B