QuickFixMultiModule: change tests structure

idea/testData/multiModuleQuickFix/other/addFunctionToCommonClassFromJavaUsage/common/common.kt

@@ -0,0 +1,5 @@
+package foo
+
+class Bar {
+
+}

idea/testData/multiModuleQuickFix/other/addFunctionToCommonClassFromJavaUsage/common/common.kt.after

@@ -0,0 +1,8 @@
+package foo
+
+class Bar {
+    fun someFun() {
+
+    }
+
+}

idea/testData/multiModuleQuickFix/other/addFunctionToCommonClassFromJavaUsage/jvm/Use.java

@@ -0,0 +1,7 @@
+// "Add method 'someFun' to 'Bar'" "true"
+
+public class Use {
+    public static void use(foo.Bar bar) {
+        bar.s<caret>omeFun();
+    }
+}