Supress debug calls in LLVM IR on d.godbolt.org

[Johan Engelen]

Hi,
   Quickly sharing godbolt info: you can suppress the annoying 
`call void @llvm.dbg.declare` "calls" in the LLVM IR, by passing 
`--gline-tables-only` as cmdline flag.
https://d.godbolt.org/z/9jMqMPf91

cheers,
   Johan