code: def report(self, reporter):
  		
  		for symbol in sorted(self.unk_symbols.keys()):
  			err = '{} ({}) is not part of IPA'.format(symbol.char, symbol.name)
  
  			if symbol.char in self.common_err:
  				repl = self.common_err[symbol.char]
  				err += ', suggested replacement is {}'.format(repl)
  				if len(repl) == 1:
  					err += ' ({})'.format(unicodedata.name(repl))
  
  			reporter.add(self.unk_symbols[symbol], err)
docs: Adds the problems that have been found so far to the given Reporter
  		instance.