Add data modifier to a class quickfix #KT-18220 Fixed

idea/testData/quickfix/addDataModifier/test3.kt

@@ -0,0 +1,9 @@
+// "Make 'Foo' data class" "true"
+// WITH_RUNTIME
+class Foo(val bar: String, var baz: Int)
+
+fun test() {
+    val list = listOf(Foo("A", 1))
+    list.forEach { (foo<caret>, bar) ->
+    }
+}