Call hierarchy points to an empty line

[bstaletic]

I have been testing my call/type hierarchies pull request for YouCompleteMe and while testing on the LLDB codebase I have been greeted by a nasty vim backtrace.
Unfortunately, all attempts at minimizing the source code needed for reproducing the problem failed.

Links to the correct YCM/ycmd pull requests (in case anyone wants to try for whatever reason):
ycm-core/ycmd#1733
ycm-core/YouCompleteMe#4221

Steps to repro:

1. Open lldb/source/Plugins/ABI/AArch64/ABIAArch64.cpp
2. Go to line 25, column 18. That's I in void ABIAArch64::Initialize() {.
3. Request incoming call hierarchy for Initialize().
4. One result found inside LLDB_PLUGIN_DEFINE(ABIAArch64), as expected.
5. Request incoming calls for lldb_initialize_ABIAArch64.
6. One result found... Method: Initialize - SystemInitializerFull.cpp:32. That line is empty on current master, which is llvm/llvm-project@31774b6

SystemInitializerFull::Initialize() is defined on line 52.

Logs

compile_commands.json

clangd_stderr.log

System information

Output of clangd --version:

clangd version 18.1.1 (https://github.com/ycm-core/llvm abd06744664af7852747fc7190a38b36473ac13b)
Features: linux
Platform: x86_64-unknown-linux-gnu

But also seen on macOS.

Editor/LSP plugin:

vim/YouCompleteMe/ycmd

Operating system:

Gentoo Linux, but also seen on macOS.

[bstaletic]

Asciinema recording:

https://asciinema.org/a/DLz2I1O63oltKqaKXsfej0Efj

[HighCommander4]

I haven't looked into the specifics here, but I've seen issues like this caused by an out of date clangd index. It's worth ruling that out by deleting the project's .cache/clangd/index, restarting clangd, waiting for it to rebuild the index, and then trying the call hierarchy again.

[bstaletic]

Fair point, I'll let clangd rebuild cache anew and report back.
It will defiitely take some time, considering the performance of my computer.