error error_code from ADA multitasking

    Facility: DEBUG, VMS Debugger

    Explanation: An unexpected error was returned to the debugger
    from the Ada RTL. Additional information from the Ada RTL is
    appended to this error message.

    User Action: User action is dependent on the information returned
    from the Ada RTL. If the error is not recoverable, the user may
    wish to enter an SPR on the Ada compiler.