Minor, add box test for unreachable uninitialized property

#KT-44496

compiler/testData/codegen/box/properties/unreachableUninitializedProperty.kt

@@ -0,0 +1,21 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+// IGNORE_BACKEND: WASM
+// WASM_MUTE_REASON: EXCEPTIONS_NOT_IMPLEMENTED
+// WITH_RUNTIME
+// KT-44496
+
+class C {
+    val todo: String = TODO()
+
+    val uninitializedVal: String
+
+    var uninitializedVar: String
+}
+
+fun box(): String =
+    try {
+        C()
+        "Fail"
+    } catch (e: NotImplementedError) {
+        "OK"
+    }