Add test for obsolete issue

#KT-4434 Obsolete

compiler/testData/diagnostics/tests/when/kt4434.kt

@@ -0,0 +1,27 @@
+// KT-4434 Missed diagnostic about else branch in when
+
+package test
+
+fun foo(): Int {
+    val a = "a"
+    return if (a.length() > 0) {
+        <!NO_ELSE_IN_WHEN!>when<!> (a) {
+            "a" -> 1
+        }
+    }
+    else {
+        3
+    }
+}
+
+fun bar(): Int {
+    val a = "a"
+    if (a.length() > 0) {
+        return <!NO_ELSE_IN_WHEN!>when<!> (a) {
+            "a" -> 1
+        }
+    }
+    else {
+        return 3
+    }
+}

compiler/testData/diagnostics/tests/when/kt4434.txt

@@ -0,0 +1,6 @@
+package
+
+package test {
+    internal fun bar(): kotlin.Int
+    internal fun foo(): kotlin.Int
+}

compiler/tests/org/jetbrains/jet/checkers/JetDiagnosticsTestGenerated.java

@@ -10635,6 +10635,12 @@ public class JetDiagnosticsTestGenerated extends AbstractJetDiagnosticsTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("kt4434.kt")
+            public void testKt4434() throws Exception {
+                String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/when/kt4434.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("NoElseExpectedUnit.kt")
             public void testNoElseExpectedUnit() throws Exception {
                 String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/when/NoElseExpectedUnit.kt");