JS: report errors on different external items:

* data classes
* val/var parameters of primary constructors
* enum entry with body
* anonymous `init {}` block in classes

compiler/testData/diagnostics/testsWithJsStdLib/native/wrongTarget.kt

@@ -1,4 +1,4 @@
-external annotation class <!WRONG_EXTERNAL_DECLARATION!>A<!>
+external annotation class <!WRONG_EXTERNAL_DECLARATION!>A(val x: Int)<!>
 
 val x: Int
     <!WRONG_EXTERNAL_DECLARATION!>external get()<!> = noImpl
@@ -16,4 +16,6 @@ class C {
 external class D {
     val a: Int
         <!WRONG_EXTERNAL_DECLARATION!>external get()<!> = noImpl
-}
+}
+
+external data class <!WRONG_EXTERNAL_DECLARATION!>E(val x: Int)<!>