'Gets the explicitly overridden pgd name for a target or returns None
if it\'s not overridden.'

def GetPGDName(self, config, expand_special):

    config = self._TargetConfig(config)
    output_file = self._Setting(('VCLinkerTool', 'ProfileGuidedDatabase'), config)
    if output_file:
        output_file = expand_special(self.ConvertVSMacros(output_file, config=config))
    return output_file
