message: Misc debuginfo.rs changes
diff: @@ -46,7 +46,6 @@ fn line_program_add_file(line_program: &mut LineProgram, file: &FileName) -> Fil
  )
  }
  }
  -
  }
  struct DebugReloc {
  @@ -57,16 +56,20 @@ struct DebugReloc {
  }
  pub struct DebugContext<'tcx> {
  + // Encoding info
  encoding: Encoding,
  endian: RunTimeEndian,
  -
  symbols: indexmap::IndexSet<String>,
  - strings: StringTable,
  + // Main data
  units: UnitTable,
  line_programs: LineProgramTable,
  +
  + // Side tables
  + strings: StringTable,
  range_lists: RangeListTable,
  + // Global ids
  unit_id: UnitId,
  global_line_program: LineProgramId,
  unit_range_list: RangeList,
  @@ -93,11 +96,12 @@ pub fn new(tcx: TyCtxt, address_size: u8) -> Self {
  None => tcx.crate_name(LOCAL_CRATE).to_string(),
  };
  - let mut units = UnitTable::default();
  let mut strings = StringTable::default();
  - let mut line_programs = LineProgramTable::default();
  let range_lists = RangeListTable::default();
  + let mut units = UnitTable::default();
  + let mut line_programs = LineProgramTable::default();
  +
  let global_line_program = line_programs.add(LineProgram::new(
  encoding,
  1,
  @@ -140,13 +144,13 @@ pub fn new(tcx: TyCtxt, address_size: u8) -> Self {
  DebugContext {
  encoding,
  endian: target_endian(tcx),
  -
  symbols: indexmap::IndexSet::new(),
  strings,
  + range_lists,
  +
  units,
  line_programs,
  - range_lists,
  unit_id,
  global_line_program,
  @@ -194,8 +198,10 @@ pub fn emit(&mut self, artifact: &mut Artifact) {
  let mut debug_ranges = DebugRanges::from(WriterRelocate::new(self));
  let mut debug_rnglists = DebugRngLists::from(WriterRelocate::new(self));
  - let debug_line_offsets = self.line_programs.write(&mut debug_line).unwrap();
  let debug_str_offsets = self.strings.write(&mut debug_str).unwrap();
  +
  + let debug_line_offsets = self.line_programs.write(&mut debug_line).unwrap();
  +
  let range_list_offsets = self
  .range_lists
  .write(
  