diff --git a/tests/target/issue_6300.rs b/tests/target/issue_6300.rs
new file mode 100644
index 00000000000..bb5a3673243
--- /dev/null
+++ b/tests/target/issue_6300.rs
@@ -0,0 +1,11 @@
+const B: b = b {
+    c: d,
+    /* block comment, has bug */
+    ..
+};
+
+const C: c = c {
+    c: d,
+    // line comment has bug
+    ..
+};