bug#61558: 29.0.60; Indentation with c-ts-mode doesn't work in code guarded by #ifdef..#endif

[Eli Zaretskii]

> From: Theodor Thornhill <theo@thornhill.no>
> Cc: 61558@debbugs.gnu.org
> Date: Sat, 18 Feb 2023 22:11:49 +0100
> 
> > Doesn't tree-sitter grammar consider #if and #elif preprocessor nodes?
> 
> It seems we are at the mercy of this[0] issue here, in all the cases
> you've described.

That issue is about #include, not #if.  Is that related?