[display] add test

closes #7864

tests/display/src/cases/Issue7864.hx

@@ -0,0 +1,18 @@
+package cases;
+
+class Issue7864 extends DisplayTestCase {
+	/**
+		@{-1-}
+		class Main {
+			static function main() {
+			}
+		}
+
+		@{-2-}
+		class Test {}
+	**/
+	function test() {
+		eq(true, hasField(fields(pos(1)), "@:enum", "", "metadata"));
+		eq(true, hasField(fields(pos(2)), "@:enum", "", "metadata"));
+	}
+}