Add "hasEnumEntries" class flag to kotlinx-metadata

^KT-53929 Fixed

libraries/tools/kotlinp/src/org/jetbrains/kotlin/kotlinp/printers.kt

@@ -501,6 +501,10 @@ class ClassPrinter(private val settings: KotlinpSettings) : AbstractPrinter<Kotl
             supertypes.joinTo(result)
         }
         result.appendLine(" {")
+        if (Flag.Class.HAS_ENUM_ENTRIES(flags!!)) {
+            sb.appendLine()
+            sb.appendLine("  // has Enum.entries")
+        }
         result.append(sb)
         result.appendLine("}")
     }

libraries/tools/kotlinp/test/org/jetbrains/kotlin/kotlinp/test/KotlinpTestGenerated.java

@@ -44,6 +44,11 @@ public class KotlinpTestGenerated extends AbstractKotlinpTest {
         runTest("libraries/tools/kotlinp/testData/Contracts.kt");
     }
 
+    @TestMetadata("EnumEntries.kt")
+    public void testEnumEntries() throws Exception {
+        runTest("libraries/tools/kotlinp/testData/EnumEntries.kt");
+    }
+
     @TestMetadata("FunInterface.kt")
     public void testFunInterface() throws Exception {
         runTest("libraries/tools/kotlinp/testData/FunInterface.kt");
@@ -74,6 +79,11 @@ public class KotlinpTestGenerated extends AbstractKotlinpTest {
         runTest("libraries/tools/kotlinp/testData/NestedClasses.kt");
     }
 
+    @TestMetadata("NotEnumWithEnumEntriesEnabled.kt")
+    public void testNotEnumWithEnumEntriesEnabled() throws Exception {
+        runTest("libraries/tools/kotlinp/testData/NotEnumWithEnumEntriesEnabled.kt");
+    }
+
     @TestMetadata("OptionalAnnotation.kt")
     public void testOptionalAnnotation() throws Exception {
         runTest("libraries/tools/kotlinp/testData/OptionalAnnotation.kt");

libraries/tools/kotlinp/testData/EnumEntries.kt

@@ -0,0 +1,5 @@
+// !LANGUAGE: +EnumEntries
+
+enum class MyEnum {
+    ONE, TWO
+}

libraries/tools/kotlinp/testData/EnumEntries.txt

@@ -0,0 +1,19 @@
+// MyEnum.class
+// ------------------------------------------
+public final enum class MyEnum : kotlin/Enum<MyEnum> {
+
+  // signature: <init>(Ljava/lang/String;I)V
+  private constructor()
+
+  ONE,
+
+  TWO,
+
+  // module name: test-module
+
+  // has Enum.entries
+}
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+}

libraries/tools/kotlinp/testData/NotEnumWithEnumEntriesEnabled.kt

@@ -0,0 +1,5 @@
+// !LANGUAGE: +EnumEntries
+
+class UsualClass {
+    fun foo() {}
+}

libraries/tools/kotlinp/testData/NotEnumWithEnumEntriesEnabled.txt

@@ -0,0 +1,16 @@
+// UsualClass.class
+// ------------------------------------------
+public final class UsualClass : kotlin/Any {
+
+  // signature: <init>()V
+  public constructor()
+
+  // signature: foo()V
+  public final fun foo(): kotlin/Unit
+
+  // module name: test-module
+}
+// META-INF/test-module.kotlin_module
+// ------------------------------------------
+module {
+}