[gtest] Use std::optional instead of llvm::Optional (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 14 Jan 2023 23:26:28 +0000 (15:26 -0800)
committerKazu Hirata <kazu@google.com>
Sat, 14 Jan 2023 23:26:28 +0000 (15:26 -0800)
commit7b31c57d69833a1f44d544f42de6f73e2a67f174
tree63c96dad2d936d902e164603790c22de0727a313
parente46d939c0fe1ec0db13ba154dd92d690d907378f
[gtest] Use std::optional instead of llvm::Optional (NFC)

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
third-party/unittest/googletest/include/gtest/internal/custom/raw-ostream.h