added shaping logic so that all the expression leaves get the same shape (constants had a different shape before)
added shaping logic so that all the expression leaves get the same shape (constants had a different shape before)

Ignore-this: d021eaa2d1979828165141979c771bc

darcs-hash:20091207071123-b3b23-afc1961b726b3741a95abeacffbccebe5ffc1393.gz

keithshep/txt-sushi