K1/K2: add Enum.entries unconditionally and filter them out in tower

Before this commit, we added Enum.entries only in case when
LanguageFeature.EnumEntries was ON (with an exception in K1/Java case).
In this commit we add Enum.entries unconditionally, and in case
the language feature is OFF we filter them out during tower resolve.

compiler/fir/analysis-tests/testData/builtIns/kotlin.txt

@@ -394,6 +394,9 @@ public final enum class DeprecationLevel : R|kotlin/Enum<kotlin/DeprecationLevel
     public final static fun values(): R|kotlin/Array<kotlin/DeprecationLevel>| {
     }
 
+    public final static val entries: R|kotlin/enums/EnumEntries<kotlin/DeprecationLevel>|
+        public get(): R|kotlin/enums/EnumEntries<kotlin/DeprecationLevel>|
+
     private constructor(): R|kotlin/DeprecationLevel|
 
     public final static enum entry WARNING: R|kotlin/DeprecationLevel|