Replace None with std::nullopt in comments (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 13 May 2023 01:33:26 +0000 (18:33 -0700)
committerKazu Hirata <kazu@google.com>
Sat, 13 May 2023 01:33:26 +0000 (18:33 -0700)
commit81e149aab9b3676b16728e883e2f21ee938cff93
treece2ac3a495380f2aa0933835346bddc5e8365473
parentdb39d479289daa6e9c099ffdb5366a3331703139
Replace None with std::nullopt in comments (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
clang-tools-extra/pseudo/include/clang-pseudo/DirectiveTree.h
llvm/include/llvm/DebugInfo/DWARF/DWARFLocationExpression.h
llvm/include/llvm/ExecutionEngine/RuntimeDyldChecker.h
llvm/include/llvm/Transforms/IPO/Attributor.h
polly/include/polly/Support/ScopHelper.h