JS: add restrictions to external modifier according to KT-13893

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

@@ -1,45 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-
-fun foo() {
-    external class A {
-        @nativeGetter
-        fun get(a: String): Any? = null
-
-        @nativeGetter
-        fun take(a: Number): String? = null
-
-        @nativeGetter
-        fun foo(a: Double): String? = null
-    }
-
-    external class B {
-        <!WRONG_ANNOTATION_TARGET!>@nativeGetter<!>
-        val foo = 0
-    }
-
-    external class C {
-        <!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>@nativeGetter
-        fun Int.get(a: String): Int?<!> = 1
-
-        <!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>@nativeGetter
-        fun Int.get2(a: Number): String?<!> = "OK"
-
-        <!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>@nativeGetter
-        fun Int.get3(a: Int): String?<!> = "OK"
-
-        <!NATIVE_INDEXER_WRONG_PARAMETER_COUNT!>@nativeGetter
-        fun get(): Any?<!> = null
-
-        @nativeGetter
-        fun get(<!NATIVE_INDEXER_KEY_SHOULD_BE_STRING_OR_NUMBER!>a: A<!>): Any? = null
-
-        @nativeGetter
-        fun <!NATIVE_GETTER_RETURN_TYPE_SHOULD_BE_NULLABLE!>foo<!>(a: Int) {}
-
-        @nativeGetter
-        fun bar(a: String): <!NATIVE_GETTER_RETURN_TYPE_SHOULD_BE_NULLABLE!>Int<!> = 0
-
-        @nativeGetter
-        fun baz(<!NATIVE_INDEXER_CAN_NOT_HAVE_DEFAULT_ARGUMENTS!>a: String = "foo"<!>): Int? = 0
-    }
-}

compiler/testData/diagnostics/testsWithJsStdLib/native/nativeGetter/onLocalNativeClassMembers.txt

@@ -1,3 +0,0 @@
-package
-
-public fun foo(): kotlin.Unit