return new StringAsImmutableList(checkNotNull(string));
  }

  /**
   * Returns a view of the specified {@code CharSequence} as a {@code List<Character>}, viewing
   * {@code sequence} as a sequence of Unicode code units. The view does not support any
   * modification operations, but reflects any changes to the underlying character sequence.
   *
   * @param sequence the character sequence to view as a {@code List} of characters

    return new StringAsImmutableList(checkNotNull(string));
  }

  /**
   * Returns a view of the specified {@code CharSequence} as a {@code List<Character>}, viewing
   * {@code sequence} as a sequence of Unicode code units. The view does not support any
   * modification operations, but reflects any changes to the underlying character sequence.
   *
   * @param sequence the character sequence to view as a {@code List} of characters

		if err != nil {
			t.Fatalf("error reading DWARF: %v", err)
		}
		if e == nil {
			break
		}
		if e.Tag != dwarf.TagCompileUnit {
			continue
		}
		// NB: there can be multiple compile units named "main".
		name := e.Val(dwarf.AttrName).(string)
		if name != "main" {
			continue
		}
		lnrdr, err := dw.LineReader(e)
		if err != nil {
			t.Fatalf("error creating DWARF line reader: %v", err)