Function arret_compiler::print_program_mir

pub fn print_program_mir(
    w: &mut dyn Write, 
    program: &BuiltProgram, 
    source_loader: Option<&SourceLoader>
) -> Result<()>

Prints a textual representation of a program’s MIR to to w

This is an internal, undocumented and unstable format that has no equivalent parser. It’s intended to aid human debugging an optimisation.