This covers functions that return single wrapped objects and don't
involve complexer code in the body.

Again this will simplify the generator, due to less special case handling.

This simplifies the remote protocol code generator.

Also rename 'ret' to 'result' to resolve a naming conflict in the
generator.

This patch just covers the simple functions without explicit return
values. There is more to be handled.

The generator collects the members of the XDR argument structs and uses
this information to generate the function bodies.

Exclude the generated files from offending syntax-checks.

Suggested by Richard W.M. Jones