QuickFixMultiModule: change tests structure

idea/testData/multiModuleQuickFix/other/memberFunParameterToReceiverByHeader/header/header.kt

@@ -0,0 +1,9 @@
+// "Convert parameter to receiver" "true"
+
+expect class Foo {
+    fun foo(n: Int, <caret>s: String)
+}
+
+fun Foo.test() {
+    foo(1, "2")
+}