added test for obsolete task

#KT-4034 Fixed

compiler/testData/diagnostics/tests/controlFlowAnalysis/definiteReturn/kt4034.kt

@@ -0,0 +1,11 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+// KT-4034 An expression of type Nothing may not affect 'definite return' analysis
+
+trait JavaClassifierType
+trait TypeUsage
+trait JetType
+
+private fun transformClassifierType(classifierType: JavaClassifierType, howThisTypeIsUsed: TypeUsage): JetType? {
+    null!!
+}