nwe've uploaded new version of JetGroovy plugin in plugin manager. The new features include:
-grails domain classes diagram
-numerous intentions (contributed by Dave Griffith)
-Flow sensitive type inference, i.e. in the code below types are inferred correctly for the second assignment:
def i = 0
i = "Reassigned to string"
def lower = i.toLowerCase()
Type information is also propagated through other control flow statements,
-generics are now taken into account in navigation and completion
-navigation to super methods and marking overridden methods in the gutter
-new errors highlighted in he editor
-navigation to library sources in groovy is supported
-numerouse bug fixes
The new build requires last IDEA eap 7269.