Added "Add remaining branches with import" quick fix #KT-16033 Fixed

idea/testData/quickfix/when/addRemainingBranchesEnumImport1.kt

@@ -0,0 +1,12 @@
+// "Add remaining branches with import" "true"
+// WITH_RUNTIME
+enum class Foo {
+    A, B, C
+}
+
+class Test {
+    fun foo(e: Foo) {
+        when<caret> (e) {
+        }
+    }
+}