Handle Markdown in EnumDeclaration

This commit fixes the IOBE on formatting Markdown in Enum declaration
part

Fixes : #5032

Author: SougandhS

org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/formatter/FormatterRegressionTests.java

@@ -16554,4 +16554,21 @@ record X<T>(T value) {
 				""";
 		formatSource(input, expected);
 	}
+
+	public void testEnumJavaDocBreak() throws JavaModelException {
+		setComplianceLevel(CompilerOptions.VERSION_23);
+		String input = """
+				public enum TestEnum  {
+					/// A
+					A;
+				}
+				""";
+		String expected = """
+				public enum TestEnum {
+					/// A
+					A;
+				}
+				""";
+		formatSource(input, expected);
+	}
 }

org.eclipse.jdt.core/formatter/org/eclipse/jdt/internal/formatter/LineBreaksPreparator.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2014, 2025 Mateusz Matela and others.
+ * Copyright (c) 2014, 2026 Mateusz Matela and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -163,8 +163,7 @@ public boolean visit(EnumDeclaration node) {
 
 		for (int i = 0; i < enumConstants.size(); i++) {
 			EnumConstantDeclaration declaration = enumConstants.get(i);
-			if (declaration.getJavadoc() != null)
-				this.tm.firstTokenIn(declaration, TokenNameCOMMENT_JAVADOC).breakBefore();
+			this.tm.firstTokenIn(declaration.getJavadoc(), ANY).breakBefore();
 			if (declaration.getAnonymousClassDeclaration() != null && i < enumConstants.size() - 1)
 				this.tm.firstTokenAfter(declaration, TokenNameCOMMA).breakAfter();
 		}