Fuzzing demonstrates namespace term regex is incorrect

[jonahbeckford]

File "tests/MlFront_Core/dune", line 4, characters 7-18:
4 |  (name fuzzparsing)
           ^^^^^^^^^^^
(cd _build/default/tests/MlFront_Core && ./fuzzparsing.exe)
ModuleParsing.is_library: PASS
ModuleParsing.is_standard_namespace_term: FAIL
When given the input:
    #1 #2 [[20; 48; 24]; ?; [12; 37]]
    
the test failed:
    ModuleParsing.is_standard_namespace_term: name=[KmO_Cb] ==> true
    !=
    regex: name=[KmO_Cb] ==> false