"Add not-null asserted (!!) call": add '!!' to receiver of function reference

#KT-37841 Fixed

idea/testData/quickfix/addExclExclCall/functionReference2.kt

@@ -0,0 +1,12 @@
+// "Add non-null asserted (!!) call" "true"
+class Foo {
+    val bar = Bar()
+}
+
+class Bar {
+    fun f() = 1
+}
+
+fun test(foo: Foo?) {
+    val f = foo?.bar::f<caret>
+}