return ChildRole.COMMA for comma between fields in anonymous class (IDEA-130275)

java/java-tests/testSrc/com/intellij/psi/formatter/java/JavaFormatterSpaceTest.java

@@ -579,4 +579,14 @@ public class JavaFormatterSpaceTest extends AbstractJavaFormatterTest {
     doMethodTest(before, "Test.class");
   }
 
+  public void testMultipleFieldDeclaration_InAnonymousClass() {
+    doMethodTest(
+      "new Object() {\n" +
+      "boolean one, two;\n" +
+      "};",
+      "new Object() {\n" +
+      "    boolean one, two;\n" +
+      "};"
+    );
+  }
 }