pub unsafe extern "C" fn LLVMRustUnpackOptimizationDiagnostic<'a>(
DI: &'a DiagnosticInfo,
pass_name_out: &RustString,
function_out: &mut Option<&'a Value>,
loc_line_out: &mut c_uint,
loc_column_out: &mut c_uint,
loc_filename_out: &RustString,
message_out: &RustString
)