proc liftLocalsIfRequested(prc: PSym; n: PNode; cache: IdentCache;
                           conf: ConfigRef; idgen: IdGenerator): PNode {....raises: [
    KeyError, ValueError, IOError, Exception, OSError, ERecoverableError], tags: [
    WriteIOEffect, ReadDirEffect, RootEffect, ReadEnvEffect, ReadIOEffect],
    forbids: [].}