llvm-project

f3634448 - [clang] Consistently store format specifiers in execution encoding (#195876)

[clang] Consistently store format specifiers in execution encoding (#195876) `DecomposePrintfHandler::HandlePrintfSpecifier()` parses the format string and collects specifiers into `Specs`. In most cases the collected specifiers are in the execution encoding, but there were to places that used string literals in "host" encoding. Change them to use a part of the parsed `StringLiteral` instead so that `Specs` always contain text in the execution encoding. This is achieved by adding `getCharacters()` method to `OptionalAmount` class, following `ConversionSpecifier::getCharacters()`. This is to make #169803 smaller and is an NFC before that PR lands.