Codegen for callable reference expressions

#KT-1183 In Progress

compiler/testData/codegen/box/callableReference/enumNameMethod.kt

@@ -0,0 +1,9 @@
+enum class E {
+    I
+}
+
+fun box(): String {
+    val i = E.I.(E::name)()
+    if (i != "I") return "Fail $i"
+    return "OK"
+}