Add a warning for a custom Enum.entries entry

^KT-53153

compiler/testData/diagnostics/tests/enum/entries/redeclarationOfEnumEntriesNameWithIntrinsic.kt

@@ -0,0 +1,10 @@
+// !LANGUAGE: -EnumEntries
+
+enum class E {
+    <!DEPRECATED_DECLARATION_OF_ENUM_ENTRY!>entries,<!> Entries;
+
+    fun foo() {
+        entries
+        E.entries
+    }
+}