third-party/unittest/googletest/README.LLVM

LLVM notes
----------

This directory contains Google Test v1.14.0, with all elements removed except
for the actual source code, to minimize the addition to the LLVM distribution.

Cleaned up as follows:

# Remove all the unnecessary files and directories
$ rm -f CMakeLists.txt configure* Makefile* CHANGES CONTRIBUTORS README README.md .gitignore
$ rm -rf build-aux cmake codegear m4 make msvc samples scripts test xcode docs
$ rm -f src/gtest_main.cc

# Put the license in the consistent place for LLVM.
$ mv LICENSE LICENSE.TXT

Modified as follows:
* Added raw_os_ostream support to include/gtest/internal/custom/gtest-printers.h.
* Added StringRef support to include/gtest/internal/custom/gtest-printers.h.
* Added LLVM printable value support to include/gtest/gtest-message.h and
  include/gtest/gtest-printers.h.
* Modified `PrintTo(char16_t c, ::std::ostream* os)` and
 `PrintTo(char16_t c, ::std::ostream* os)` in include/gtest/gtest-printers.h.
  to work around https://github.com/google/googletest/issues/4762