Quick fix "add when remaining branches" refactoring + enum / sealed generated name w/o package name

idea/testData/quickfix/when/addRemainingBranchesInNonDefaultPackage.kt

@@ -0,0 +1,8 @@
+// "Add remaining branches" "true"
+// ERROR: Unresolved reference: TODO
+// ERROR: Unresolved reference: TODO
+package test
+enum class Color { R, G, B }
+fun test(c: Color) = wh<caret>en(c) {
+    Color.B -> 0xff
+}