3526054 - Error 11031 reported for manually hidden stored procedure text after upgrade - SAP ASE

• Upgrading from one Service Pack to another, i.e. SP03 PL08 to SP04 PL06.
• Stored procedures that have been manually "hidden" by editing syscomments.text fail to run after the upgrade.
• Executing or running dbcc upgrade_object reports Error 11031 along with error 156 (but could be any other syntax-like error).
  1> exec testproc
  2> go
  Msg 156, Level 15, State 1:
  Server 'ase', Procedure 'testproc', Line 1:
  Incorrect syntax near the keyword 'end'.
  Msg 11031, Level 16, State 1:
  Server 'ase', Procedure 'testproc', Line 1:
  Execution of procedure testproc failed because of errors parsing the source text in syscomments during upgrade. Please drop and recreate dbo.testproc.
  Single-statement transaction has been rolled back.
  

SAP Adaptive Server Enterprise (ASE) 16.0

upgrade_object, hidden text , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem