QuickFixMultiModule: change tests structure

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

@@ -0,0 +1,7 @@
+// "Convert member to extension" "false"
+// ACTION: Convert property to function
+// ACTION: Move to companion object
+
+expect class Foo {
+    val <caret>foo: Int
+}