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

compiler/testData/diagnostics/tests/inference/inferInFunctionLiterals.fir.kt

@@ -0,0 +1,12 @@
+package n
+
+//+JDK
+import java.util.*
+
+fun <T> expected(t: T, f: () -> T) : T = t
+
+fun test(arrayList: ArrayList<Int>, list: List<Int>) {
+    val t = expected(arrayList, { list.reverse() })
+}
+
+fun <T> List<T>.reverse() : List<T> = this