[ADT] Use std::optional in TypeSwitch.h (NFC)
authorKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 19:48:57 +0000 (11:48 -0800)
committerKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 19:48:57 +0000 (11:48 -0800)
commitc0c5ffad4344c9b611b4166313b574c8ca9e20b4
tree8675cbf324835597739251f525bf19f1452d4662
parentdd436d3cff53db0c64cc4ef5a671b7985917130e
[ADT] Use std::optional in TypeSwitch.h (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/include/llvm/ADT/TypeSwitch.h