Modifiers on local variables are ignored

In Java, at least, the only modifier allowed on local variables is "final." Groovy seems to accept and ignore all modifiers, final or otherwise. For example:

class Foo {
def bar()

}

Compiles just fine.

So there are really two issues here: (a) "final" semantics not being represented and enforced, and (b) all other modifiers not generating parse errors.

For (a), the DeclarationExpression doesn't seem to have a place to hold modifiers; perhaps it should have an isFinal field?