Report error on native members of traits

compiler/testData/diagnostics/testsWithStdLib/native/trait.kt

@@ -0,0 +1,11 @@
+import kotlin.jvm.*
+
+trait Tr {
+    <!NATIVE_DECLARATION_IN_TRAIT!>native fun foo()<!>
+    <!NATIVE_DECLARATION_IN_TRAIT, NATIVE_DECLARATION_CANNOT_HAVE_BODY!>native fun bar()<!> {}
+
+    class object {
+        native fun foo()
+        <!NATIVE_DECLARATION_CANNOT_HAVE_BODY!>native fun bar()<!> {}
+    }
+}

compiler/testData/diagnostics/testsWithStdLib/native/trait.txt

@@ -0,0 +1,18 @@
+package
+
+internal trait Tr {
+    kotlin.jvm.native() internal open fun bar(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    kotlin.jvm.native() internal abstract fun foo(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+    internal class object <class-object-for-Tr> {
+        private constructor <class-object-for-Tr>()
+        kotlin.jvm.native() internal final fun bar(): kotlin.Unit
+        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+        kotlin.jvm.native() internal final fun foo(): kotlin.Unit
+        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    }
+}