Fix isInitialized receiver generation for empty LHS

#KT-20774 Fixed

compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/emptyLhs.kt

@@ -0,0 +1,50 @@
+// WITH_RUNTIME
+
+package test
+
+import kotlin.reflect.KProperty
+import test.Derived.p
+
+class Foo {
+    lateinit var p: String
+
+    fun test(): Boolean {
+        if (!::p.isInitialized) {
+            p = "OK"
+            return false
+        }
+        return true
+    }
+}
+
+object Bar {
+    lateinit var p: String
+
+    fun test(): Boolean {
+        if (!::p.isInitialized) {
+            p = "OK"
+            return false
+        }
+        return true
+    }
+}
+
+open class Base(val b: Boolean)
+
+object Derived : Base(::p.isInitialized) {
+    lateinit var p: String
+}
+
+fun box(): String {
+    val foo = Foo()
+    if (foo.test()) return "Fail 1"
+    if (!foo.test()) return "Fail 2"
+
+    val bar = Bar
+    if (bar.test()) return "Fail 3"
+    if (!bar.test()) return "Fail 4"
+
+    if (Derived.b) return "Fail 5"
+
+    return bar.p
+}