Add a warning for a custom Enum.entries entry

^KT-53153

compiler/testData/diagnostics/tests/enum/entries/enumEntriesAmbiguity.fir.kt

@@ -0,0 +1,8 @@
+// !LANGUAGE: +EnumEntries
+// FIR_DUMP
+
+enum class Ambiguous {
+    first, entries;
+}
+
+val e = Ambiguous.entries

compiler/testData/diagnostics/tests/enum/entries/enumEntriesAmbiguity.fir.txt

@@ -1,4 +1,4 @@
-FILE: enumEntriesAmbiguity.kt
+FILE: enumEntriesAmbiguity.fir.kt
     public final enum class Ambiguous : R|kotlin/Enum<Ambiguous>| {
         private constructor(): R|Ambiguous| {
             super<R|kotlin/Enum<Ambiguous>|>()

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

@@ -1,9 +1,8 @@
-// FIR_IDENTICAL
 // !LANGUAGE: +EnumEntries
 // FIR_DUMP
 
 enum class Ambiguous {
-    first, entries;
+    first, <!DEPRECATED_DECLARATION_OF_ENUM_ENTRY!>entries;<!>
 }
 
 val e = Ambiguous.entries

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

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

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
+    }
+}

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

@@ -0,0 +1,23 @@
+package
+
+public final enum class E : kotlin.Enum<E> {
+    enum entry entries
+
+    enum entry Entries
+
+    private constructor E()
+    @kotlin.internal.IntrinsicConstEvaluation public final override /*1*/ /*fake_override*/ val name: kotlin.String
+    public final override /*1*/ /*fake_override*/ val ordinal: kotlin.Int
+    protected final override /*1*/ /*fake_override*/ fun clone(): kotlin.Any
+    public final override /*1*/ /*fake_override*/ fun compareTo(/*0*/ other: E): kotlin.Int
+    public final override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    protected/*protected and package*/ final override /*1*/ /*fake_override*/ /*isHiddenForResolutionEverywhereBesideSupercalls*/ fun finalize(): kotlin.Unit
+    public final fun foo(): kotlin.Unit
+    public final override /*1*/ /*fake_override*/ /*isHiddenForResolutionEverywhereBesideSupercalls*/ fun getDeclaringClass(): java.lang.Class<E!>!
+    public final override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+    // Static members
+    public final /*synthesized*/ fun valueOf(/*0*/ value: kotlin.String): E
+    public final /*synthesized*/ fun values(): kotlin.Array<E>
+}