[perl #57452] Many spectest_regression tests fail to run

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
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$ svn info | grep vi
Revision: 29905

Many of the spectests look like this right now:

t/spec/S02-builtin_data_types/anon_block...............src/string.c:2091:
failed assertion 's'
Backtrace - Obtained 14 stack frames (max trace depth is 32).
  Parrot_confess
    Parrot_confess
      string_to_cstring
        Parrot_open_p_s_sc
          dod_register_pmc
            interpinfo_s
              enable_event_checking
                Parrot_runops_fromc
                  Parrot_runops_fromc_args
                    Parrot_runcode
                      imcc_initialize
                        imcc_run
                          start
                            start