[obj2yaml] Use std::optional in elf2yaml.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 03:06:49 +0000 (19:06 -0800)
committerKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 03:06:49 +0000 (19:06 -0800)
commit23a884bbeff22f19aceefd7a24e046de0d6fa73e
tree9bc38e7cad57cc48a2214bb22099ee113cfa4959
parenta2bc7826fdb8be4fdc1b8f6aa09e4242b2a1d65f
[obj2yaml] Use std::optional in elf2yaml.cpp (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
llvm/tools/obj2yaml/elf2yaml.cpp