JS frontend: added tests for nativeInvoke, nativeGetter, nativeSetter.

compiler/testData/diagnostics/testsWithJsStdLib/native/nativeGetter/onToplevelOtherDeclarations.kt

@@ -0,0 +1,10 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+<!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN, NATIVE_INDEXER_WRONG_PARAMETER_COUNT!>nativeGetter
+fun toplevelFun(): <!NATIVE_GETTER_RETURN_TYPE_SHOULD_BE_NULLABLE!>Any<!><!> = 0
+
+<!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>nativeGetter
+val toplevelVal<!> = 0
+
+nativeGetter
+class <!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>Foo<!> {}