[Lldb-commits] [lldb] [lldb] Start using formatv() in RegisterContextUnwind (NFCI) (PR #191576)

[David Spickett via lldb-commits]

DavidSpickett wrote:

> I didn't replace all function calls with macros because there are too many of them for one PR. This only replaces calls whose format string contains no specifiers or only '%s' specifiers.

That's sensible but can I just confirm that the motivation for this work is to tackle uses like:
```
    UnwindLogMsg("with pc value of 0x%" PRIx64 ", symbol name is '%s'",
                 current_pc, GetSymbolOrFunctionName(m_sym_ctx).AsCString(""));
```
Where we don't have to predict the format specifier, and we can pass in StringRefs and other things directly.

(will review the changes later today)

https://github.com/llvm/llvm-project/pull/191576