Add a test for multi-single-line comments as well

Author: repnop

crates/ide_db/src/helpers/insert_use/tests.rs

@@ -401,6 +401,21 @@ use foo::bar::Baz;"#,
     );
 }
 
+#[test]
+fn inserts_after_multiple_single_line_comments() {
+    check_none(
+        "foo::bar::Baz",
+        "// Represents a possible license header and/or general module comments
+// Second single-line comment
+// Third single-line comment",
+        r#"// Represents a possible license header and/or general module comments
+// Second single-line comment
+// Third single-line comment
+
+use foo::bar::Baz;"#,
+    );
+}
+
 #[test]
 fn inserts_before_single_line_item_comments() {
     check_none(