DWARF5 attribute forms DW_FORM_line_strp

[Rtoax]

This submit try to fix [0]

gcc commit 3aa46b47b266("dwarf2out.c (debug_line_str_section): New variable.") introduct DW_FORM_line_strp = 31(0x1f).

Error:

  $ perf record -b -e br_inst_retired.near_taken:pp -- ./redis-server
  $ create_gcov --binary=./redis-server --profile=perf.data --gcov=redis-server.gcov -gcov_version=1
  [WARNING:/home/rongtao/Git/google/autofdo/third_party/perf_data_converter/src/quipper/perf_reader.cc:1320] Skipping 120 bytes of metadata: HEADER_CPU_TOPOLOGY
  [WARNING:/home/rongtao/Git/google/autofdo/third_party/perf_data_converter/src/quipper/perf_reader.cc:1067] Skipping unsupported event PERF_RECORD_ID_INDEX
  [WARNING:/home/rongtao/Git/google/autofdo/third_party/perf_data_converter/src/quipper/perf_reader.cc:1067] Skipping unsupported event PERF_RECORD_CPU_MAP
  [WARNING:/home/rongtao/Git/google/autofdo/third_party/perf_data_converter/src/quipper/perf_reader.cc:1067] Skipping unsupported event UNKNOWN_EVENT_82
  [INFO:/home/rongtao/Git/google/autofdo/third_party/perf_data_converter/src/quipper/perf_reader.cc:1058] Number of events stored: 26469
  [INFO:/home/rongtao/Git/google/autofdo/third_party/perf_data_converter/src/quipper/perf_parser.cc:274] Parser processed: 13 MMAP/MMAP2 events, 7 COMM events, 5 FORK events, 0 EXIT events, 26364 SAMPLE events, 25839 of these were mapped, 0 SAMPLE events with a data address, 0 of these were mapped
  WARNING: Logging before InitGoogleLogging() is written to STDERR
  W20230317 14:17:19.056632 32875 legacy_addr2line.cc:41] File './redis-server' has no .debug_addr section.
  W20230317 14:17:19.056703 32875 legacy_addr2line.cc:41] File './redis-server' has no .debug_ranges section.
  F20230317 14:17:19.056878 32875 dwarf2reader.cc:836] Unhandled form type
  *** Check failure stack trace: ***
  Aborted (core dumped)

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[Rtoax]

@denik82 Please review this PR, thanks!