Sema passes memset of zero-length array to codegen, triggering assertion

[myclevorname]

Zig Version

0.16.0-dev.579+2cdafe910

Steps to Reproduce and Observed Output

1. Build Zig without LLVM support
2. Run zig reduce or zig build -Doptimize=ReleaseSafe -Dno-lib
   https://gist.github.com/myclevorname/c3bafc253e2ba7b499c451d646282aa9

Expected Output

Compiles and runs wiithout errors or IB.