Function rustc_mir::util::spanview::write_mir_fn_spanview

pub fn write_mir_fn_spanview<'tcx, W>(
    tcx: TyCtxt<'tcx>, 
    body: &Body<'tcx>, 
    spanview: MirSpanview, 
    title: &str, 
    w: &mut W
) -> Result<()> where
    W: Write, 

Write a spanview HTML+CSS file to analyze MIR element spans.