Parser fails if an identifier contains '@' #437
Description
Describe the bug
Given the following copybook:
01 ROOT-GROUP.
05 F@TEST PIC X(1).
Got:
Syntax error in the copybook at line 3: Invalid input 'TEST' at position 3:16
za.co.absa.cobrix.cobol.parser.exceptions.SyntaxErrorException: Syntax error in the copybook at line 3: Invalid input 'TEST' at position 3:16
Expected behaviour
Cobrix should replace such characters with '_' as in 0.5.4.