KT-4008 'Replace if with when' is available but does not work

idea/testData/intentions/branched/ifWhen/ifToWhen/ifWithoutElse.kt

@@ -0,0 +1,10 @@
+fun test(n: Int) {
+    val s = "test"
+    <caret>if (n == 0)
+        s = "zero"
+    else if (n == 1)
+        s = "one"
+    else if (n == 2)
+        s = "two"
+    return s
+}

idea/testData/intentions/branched/ifWhen/ifToWhen/ifWithoutElse.kt.after

@@ -0,0 +1,9 @@
+fun test(n: Int) {
+    val s = "test"
+    when (n) {
+        0 -> s = "zero"
+        1 -> s = "one"
+        2 -> s = "two"
+    }
+    return s
+}

idea/testData/intentions/branched/ifWhen/whenToIf/whenWithoutElse.kt

@@ -0,0 +1,9 @@
+fun test(n: Int) {
+    val s = "test"
+    <caret>when (n) {
+        0 -> s = "zero"
+        1 -> s = "one"
+        2 -> s = "two"
+    }
+    return s
+}

idea/testData/intentions/branched/ifWhen/whenToIf/whenWithoutElse.kt.after

@@ -0,0 +1,7 @@
+fun test(n: Int) {
+    val s = "test"
+    if (n == 0) s = "zero"
+    else if (n == 1) s = "one"
+    else if (n == 2) s = "two"
+    return s
+}