[clang] [clang] Fix crash on no-prototype indirect calls with -fexperimental-call-graph-section (PR #210846)

[Eli Friedman via cfe-commits]

efriedma-quic wrote:

Okay, that makes sense, I guess.

Saying that you're "generating type metadata as if it took no arguments" when there is actually an argument seems dubious, though.  On both the caller and callee sides.

https://github.com/llvm/llvm-project/pull/210846