symbol 'symbol_name' is overloaded use SHOW SYMBOL to find the
 unique symbol names

    Facility: DEBUG, VMS Debugger

    Explanation: More than one instance of the specified symbol
    '<symbol_name, !AC>' exists in the user program. Without further
    information, the debugger cannot determine which symbol to use.

    User Action: Re-enter the command, uniquely specifying the symbol
    to be used. The SHOW SYMBOL command can be used to find the
    unique symbol names.