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

idea/testData/multiModuleQuickFix/classSomeProperties/header/header.kt

@@ -0,0 +1,11 @@
+// DISABLE-ERRORS
+
+expect class My {
+    fun foo(param: String): Int
+
+    val x: String
+
+    val pi: Double
+
+    val correct: Boolean
+}

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

@@ -0,0 +1,11 @@
+// DISABLE-ERRORS
+
+expect class My {
+    fun foo(param: String): Int
+
+    val x: String
+
+    val pi: Double
+
+    val correct: Boolean
+}

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

@@ -0,0 +1,8 @@
+// "Add missing actual members" "true"
+// DISABLE-ERRORS
+
+actual class <caret>My {
+    actual fun foo(param: String) = 42
+
+    actual val correct = true
+}

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

@@ -0,0 +1,12 @@
+// "Add missing actual members" "true"
+// DISABLE-ERRORS
+
+actual class <caret>My {
+    actual fun foo(param: String) = 42
+
+    actual val correct = true
+    actual val x: String
+        get() = TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    actual val pi: Double
+        get() = TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+}