KT-1151 Code completion for not imported extension functions - more tests for extension functions and properties

idea/testData/completion/basic/multifile/NotImportedExtensionFunction-2.kt

@@ -8,4 +8,7 @@ fun String.helloWithParams(i : Int) : String {
 }
 
 fun String.helloFunPreventAutoInsert() {
+}
+
+fun Int.helloFake() {
 }