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

compiler/testData/diagnostics/tests/dataFlowInfoTraversal/QualifiedExpression.fir.kt

@@ -0,0 +1,13 @@
+fun baz(x: Int): Int = x + 1
+
+class A {
+    fun bar(x: Int) = baz(x)
+}
+
+fun foo() {
+    val x: Int? = null
+
+    A().bar(x)
+    if (x == null) return
+    A().bar(x)
+}