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/loadCompiledKotlin/class/EnumWithGenericConstructorParameter.txt

@@ -5,6 +5,9 @@ public final enum class EnumWithGenericConstructorParameter : R|kotlin/Enum<test
     public final static fun values(): R|kotlin/Array<test/EnumWithGenericConstructorParameter>| {
     }
 
+    public final static val entries: R|kotlin/enums/EnumEntries<test/EnumWithGenericConstructorParameter>|
+        public get(): R|kotlin/enums/EnumEntries<test/EnumWithGenericConstructorParameter>|
+
     private constructor(list: R|kotlin/collections/List<kotlin/String>?|): R|test/EnumWithGenericConstructorParameter|
 
 }

compiler/fir/analysis-tests/testData/loadCompiledKotlin/class/EnumWithPrimitiveConstructorParameter.txt

@@ -5,6 +5,9 @@ public final enum class EnumWithPrimitiveConstructorParameter : R|kotlin/Enum<te
     public final static fun values(): R|kotlin/Array<test/EnumWithPrimitiveConstructorParameter>| {
     }
 
+    public final static val entries: R|kotlin/enums/EnumEntries<test/EnumWithPrimitiveConstructorParameter>|
+        public get(): R|kotlin/enums/EnumEntries<test/EnumWithPrimitiveConstructorParameter>|
+
     private constructor(b: R|kotlin/Boolean|): R|test/EnumWithPrimitiveConstructorParameter|
 
 }