Fangrui Song 9408164254 [FileCheck] llvm::Optional => std::optional
Don't touch FileCheck.cpp:698 StringSwitch<Optional<binop_eval_t>>(FuncName).
MSVC and older GCC may report errors:

error C2664: 'llvm::StringSwitch<std::optional<llvm::binop_eval_t>,T> &llvm::StringSwitch<T,T>::Case(llvm::StringLiteral,T)': cannot convert argument 2 from 'overloaded-function' to 'T'
        with
        [
            T=std::optional<llvm::binop_eval_t>
        ]

llvm/lib/FileCheck/FileCheck.cpp:699:44: error: no matching function for call to ‘llvm::StringSwitch<std::optional<llvm::Expected<llvm::ExpressionValue> (*)(const llvm::ExpressionValue&, const llvm::ExpressionValue&)> >::Case(const char [4], <unresolved overloaded function type>)’
                      .Case("add", operator+)
                                            ^
2022-12-14 18:44:30 +00:00
..