Fixes small hover issues

[markwpearce]

Hover on unresolved type:

                sub doSomething(thing as UnknownType)
                    print thing  ' hover on thing
                end sub

=>
thing as UnknownType

Hover with type chain including dynamic:

                sub doSomething(thing )
                    print thing.property  ' hover on property
                end sub

=>
property as dynamic