llvm-project

18db3eee - [libc] Template printf_core::Parser to support wchar_t. (#222988)

[libc] Template printf_core::Parser to support wchar_t. (#222988) This is the next step in the ongoing refactor to support wide character printf functions. `printf_core::FormatSection` is also templated on character type as it is required for parser_test. `FormatSection` is named in many more places. In order to keep this PR on the smaller side, it also gets a rename + `char` alias in the pattern of `basic_string_view` / `string_view`. Assisted-by: Automated tooling, human reviewed.