relates to:

• SR-4587 No "inaccessible" diagnostic for property if the base name is shared with methods
• SR-9916 Variable name same as function name

Issue Description:

Until Swift 2.2.1 this snippet compiled correctly and no errors were reported by SourceKit:

class TestClass{
    var p1: Int = 1
    func p1(a: Int) {
        print(a)
    }
}

let tc = TestClass()
print(tc.p1)
tc.p1(a:2)

But now both Xcode and the repl report this error when trying to call tc.p1(a:2):

error: cannot call value of non-function type 'Int'

When compiled with swiftc (even a recent june 3.0-dev) the code above still gets compiled cleanly without errors.

Since i suppose that we now want to disallow the use of the same name for a method and a property, this check should be performed in swiftc too and maybe the error should be shown when the class with the duplicated label it's declared (when the p1 func is declared?) instead than at its first use.

Note: And the `p1` function can still be called with (tc.p1 as (Int)->Void)(2), so, it this just an initial implementation of this error or it's the side-effect of other modifications in the way types are handled/resolved?