[MCParser] Use std::optional in WasmAsmParser.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Fri, 25 Nov 2022 20:26:10 +0000 (12:26 -0800)
committerKazu Hirata <kazu@google.com>
Fri, 25 Nov 2022 20:26:10 +0000 (12:26 -0800)
commit7c88445a3c5a882ed1f7cead01211b2410dff03c
treec76aebfb95bbcb764ab3d33a47ec4e0e8ebd25f9
parente6319cdcb9fad11443acbbe24b5fdaf3e910b522
[MCParser] Use std::optional in WasmAsmParser.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/lib/MC/MCParser/WasmAsmParser.cpp