[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/callableReference/property/kt7945_unrelatedClass.fir.kt

@@ -0,0 +1,11 @@
+// !WITH_NEW_INFERENCE
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+import kotlin.reflect.KProperty1
+
+class TestClass(var prop: Int)
+open class OtherClass
+fun OtherClass.test(prop: KProperty1<TestClass, Int>): Unit = throw Exception()
+class OtherClass2: OtherClass() {
+    val result = <!INAPPLICABLE_CANDIDATE!>test<!>(TestClass::result)
+}