Introduce "add missing actual members" quick-fix #KT-18449 Fixed

idea/testData/multiModuleQuickFix/classOverloadedFunction/header/header.kt

@@ -0,0 +1,7 @@
+// DISABLE-ERRORS
+
+expect class My {
+    fun foo(param: String): Int
+
+    fun foo(param: Int): Int
+}

idea/testData/multiModuleQuickFix/classOverloadedFunction/header/header.kt.after

@@ -0,0 +1,7 @@
+// DISABLE-ERRORS
+
+expect class My {
+    fun foo(param: String): Int
+
+    fun foo(param: Int): Int
+}

idea/testData/multiModuleQuickFix/classOverloadedFunction/jvm/My.kt

@@ -0,0 +1,6 @@
+// "Add missing actual members" "true"
+// DISABLE-ERRORS
+
+actual class <caret>My {
+    fun foo(param: String) = 42
+}

idea/testData/multiModuleQuickFix/classOverloadedFunction/jvm/My.kt.after

@@ -0,0 +1,9 @@
+// "Add missing actual members" "true"
+// DISABLE-ERRORS
+
+actual class My {
+    fun foo(param: String) = 42
+    actual fun foo(param: Int): Int {
+        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+}