Fix type inferencing and syntax highlighting for static methods and properties that hide Class members

[eric-milles]

Consider the following:

class C {
  static getName() {
  }
}
C.name
C.getName()
def c = C.class
c.name
c.getName()

Each occurrence of "name" and "getName" refer to C#getName() and not Class#getName(). They are currently shown as java.lang.Class references.

[eric-milles]

GROOVY-1809 tracks private method visibility; GROOVY-3458 and GROOVY-8350 discuss static members versus Class instance members.

[eric-milles]