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

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

@@ -1,25 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-
-fun foo() {
-    external class A {
-        @nativeInvoke
-        fun foo() {}
-
-        @nativeInvoke
-        fun invoke(a: String): Int = 0
-
-        <!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>@nativeInvoke
-        fun Int.ext()<!> = 1
-
-        <!NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN!>@nativeInvoke
-        fun Int.invoke(a: String, b: Int)<!> = "OK"
-
-        val anonymous = object {
-            @nativeInvoke
-            fun foo() {}
-
-            @nativeInvoke
-            fun invoke(a: String): Int = 0
-        }
-    }
-}

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

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