From a064a87ecdfefeb600830f6add026da55e1758c4 Mon Sep 17 00:00:00 2001
From: James Shubin <james@shubin.ca>
Date: Fri, 7 Feb 2025 17:17:02 -0500
Subject: [PATCH] lang: Add a weird test case

Mark Smith was concerned we might not handle this case correctly. It
seems we do in fact catch this scenario, so it's not an issue. Yay!
---
 lang/interpret_test/TestAstFunc2/ycombinator.txtar | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 lang/interpret_test/TestAstFunc2/ycombinator.txtar

diff --git a/lang/interpret_test/TestAstFunc2/ycombinator.txtar b/lang/interpret_test/TestAstFunc2/ycombinator.txtar
new file mode 100644
index 00000000..43c7cd7c
--- /dev/null
+++ b/lang/interpret_test/TestAstFunc2/ycombinator.txtar
@@ -0,0 +1,14 @@
+-- main.mcl --
+import "fmt"
+
+$y = func($fn) {
+	$fn($fn)
+}(
+	func($fn) {
+		$fn($fn)
+	}
+)
+
+test [fmt.printf("y: %v", $y),] {}
+-- OUTPUT --
+# err: errUnify: unify error with: param(fn): directly in the same set