- added new helper: gdb_get_location_from_symbol(addr)   this function returns the location and offset from the address passed in arg   from the symbol table. if address was found in it, it returns None.
- added new helper: gdb_get_location_from_symbol(addr)
  this function returns the location and offset from the address passed in arg
  from the symbol table. if address was found in it, it returns None.

hugsy/gef,hugsy/gef,hugsy/gef,wmliang/gef,wmliang/gef