6375 Add native name demangling support

*** 36,40 ****
--- 36,43 ----
      'json_03_empty_arrays', 'json_04_number_arrays', 'json_05_strings',
      'json_06_nested', 'json_07_nested_arrays']
  
  [/opt/util-tests/tests/grep_test]
  [/opt/util-tests/tests/date_test]
+ 
+ [/opt/util-tests/tests/demangle]
+ tests = ['afl-fast', 'gcc-libstdc++', 'llvm-stdcxxabi']