Overridden functions using default arguments in recursive call are no more considered tail recursive #KT-4285 Fixed

compiler/testData/codegen/box/diagnostics/functions/tailRecursion/defaultArgsOverridden.kt

@@ -0,0 +1,11 @@
+open class A {
+    open fun foo(s: String = "OK") = s
+}
+
+class B : A() {
+    <!NO_TAIL_CALLS_FOUND!>override tailrec fun foo(s: String): String<!> {
+        return if (s == "OK") s else foo()
+    }
+}
+
+fun box() = B().foo("FAIL")