Fix type inferencing and syntax highlighting for @Delegate

[eric-milles]

Consider the following:

class C implements Comparator<C> { def p
  @Delegate Comparator<C> cmp = comparing(this::p)
}

"comparing" is highlighting as a static method of Comparator. Since it is static, it should not be available in this way. Additionally, if "excludes" or "includes" attributes are provided to @Delegate the methods available are not adjusted.

[eric-milles]

[eric-milles]