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

compiler/testData/diagnostics/tests/tailRecursionComplex.fir.kt

@@ -0,0 +1,16 @@
+object O {
+    // This is correct, foo is the same
+    tailrec fun foo(i: Int): Int = if (i < 0) 0 else O.foo(i - 1)
+}
+
+class A {
+    tailrec fun foo(i: Int) = if (i < 0) 0 else A.foo(i - 1)
+
+    companion object {
+        fun foo(i: Int) = 42 + i
+    }
+}
+
+class B {
+    tailrec fun foo(i: Int) = if (i < 0) 0 else O.foo(i - 1)
+}