bug#21526: 24.5; prolog-mode: broken indentation for if-then-else construct

[Stefan Monnier]

> But it does not do so consistently: C-M-b jumps back up to including the
> predicate name, but C-M-f from that position only jumps forward up to
> the opening parenthesis, and not including the whole construct.

It does, if you do the C-M-f from just before the dot.
The fact that you have to "jump over the dot" is the crucial hint you
(the user) give to Emacs that you want to jump over "the whole LHS/RHS
of that dot" rather than over a deeper part of the AST.


        Stefan