Don't require to override abstract methods in expect class

#KT-16099 Fixed

idea/testData/quickfix/override/dontOfferToImplementMembersForExpectedClass.kt

@@ -0,0 +1,12 @@
+// "Implement members" "false"
+// ACTION: Create test
+// ACTION: Make internal
+// ACTION: Make private
+// ACTION: Move 'A' to separate file
+
+interface I {
+    fun foo()
+}
+
+@Suppress("UNSUPPORTED_FEATURE")
+expect <caret>class A : I