Resolve invoke on class objects and enum entries

Added FakeCallableDescriptorForObject to make a resolved call
with object as variable in 'variable as function call'

 #KT-4321 Fixed
 #KT-4863 Fixed

compiler/testData/resolvedCalls/invoke/invokeOnObject2.kt

@@ -0,0 +1,5 @@
+object A {
+    fun invoke(i: Int) = i
+}
+
+fun test() = A<caret>(1)