Tests: extract addMissingActualMembers from multiModuleQuickFix/other

idea/testData/multiModuleQuickFix/addMissingActualMembers/classWithIncompilableFunction/header/header.kt

@@ -0,0 +1,6 @@
+// DISABLE-ERRORS
+
+expect class My {
+    // Incompilable function
+    fun foo() {}
+}

idea/testData/multiModuleQuickFix/addMissingActualMembers/classWithIncompilableFunction/header/header.kt.after

@@ -0,0 +1,6 @@
+// DISABLE-ERRORS
+
+expect class My {
+    // Incompilable function
+    fun foo() {}
+}