Feature request: tab completion on functions

[Odne Hellebø]

I have some functions that are very similar and would like to be able to
tabcomplete those. The command is like makeFoodSpaghetti and
makeFoodLasagne. I get tabcompletion for make but if the nextletter isn't a
capital letter it doesn't work.... and obviously need to have capital
letter for S and L as well.

I've already set the set completion-ignore-case on in the .inputrc, but it
seems this doesn't take effect on the first word...