llvm-project/llvm/test/tools/llvm-ifs/version-ok.ifs

# RUN: llvm-ifs -action write-ifs -o - %s %S/object.ifs

--- !experimental-ifs-v1
IfsVersion:      1.1
Triple:          x86_64-unknown-linux-gnu
ObjectFileFormat: ELF
Symbols:
  a:               { Type: Func }
...