Able to use single-arg closure for methods that accept Expression

[yihtserns]

Right now, have to do this:

from(...).transform { exchange, type -> ... }.setBody { exchange, type -> ... }

Most of the time, I don't care about the type argument, I want to do something similar to this:

from(...).transform { ... }.setBody { ... }

where the implicit it is just exchange.

[yihtserns]

There are too many methods that uses Expression, and I don't think there's a way to add this support to all of them with small effort.

Perhaps by adding groovy(Closure) method in ExpressionClause?

from(...).transform().groovy { ... }.setBody().groovy { ... }