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

compiler/testData/diagnostics/tests/nullabilityAndSmartCasts/kt2216.fir.kt

@@ -0,0 +1,22 @@
+// !WITH_NEW_INFERENCE
+// !DIAGNOSTICS: -DEBUG_INFO_SMARTCAST
+//KT-2216 Nullability of a value determined in function parameter computation doesn't pass to code following
+package kt2216
+
+fun bar(y: Int, z: Int) = y + z
+fun baz(a: Int, b: Int, c: Int, d: Int) = a + b + c + d
+
+fun foo() {
+    val x: Int? = 0
+
+    bar(if (x != null) x else return, x)
+    x + 2
+    bar(x, x!!)
+
+    val y: Int? = 0
+    val z: Int? = 0
+    bar(if (y != null) y else z, y)
+    y <!INAPPLICABLE_CANDIDATE!>+<!> 2
+    baz(y, y, if (y == null) return else y, y)
+    baz(y, z!!, z, y)
+}