Generate delegates to DefaultImpls in fun interface wrappers

#KT-37436 Fixed

compiler/testData/codegen/box/funInterface/nonAbstractMethod.kt

@@ -0,0 +1,23 @@
+// IGNORE_BACKEND: JVM_IR, JS_IR
+// IGNORE_BACKEND_FIR: JVM_IR
+
+interface I {
+    fun inherited(s: String): String = privateInherited(s)
+
+    private fun privateInherited(s: String): String = s
+}
+
+fun interface F : I {
+    fun invoke(o: String): String
+
+    fun result(): String = inherited(privateFun("O"))
+
+    private fun privateFun(s: String): String = invoke(s)
+}
+
+fun box(): String {
+    if (F { o -> o + "K" }.result() != "OK") return "Fail"
+
+    val lambda: (String) -> String = { o -> o + "K" }
+    return F(lambda).result()
+}