From bae336da87cf8418b96cebf0772b0309322cb1b8 Mon Sep 17 00:00:00 2001
From: Cameron Zwarich <cameron@lean-fro.org>
Date: Sun, 1 Jun 2025 22:07:57 -0700
Subject: [PATCH] chore: make ToMonoM.State.typeParams an FVarIdHashSet rather
 than an FVarIdSet (#8581)

---
 src/Lean/Compiler/LCNF/ToMono.lean | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Lean/Compiler/LCNF/ToMono.lean b/src/Lean/Compiler/LCNF/ToMono.lean
index 7770a85dc4..421a1b37c3 100644
--- a/src/Lean/Compiler/LCNF/ToMono.lean
+++ b/src/Lean/Compiler/LCNF/ToMono.lean
@@ -12,7 +12,7 @@ import Lean.Compiler.NoncomputableAttr
 namespace Lean.Compiler.LCNF
 
 structure ToMonoM.State where
-  typeParams : FVarIdSet := {}
+  typeParams : FVarIdHashSet := {}
   noncomputableVars : FVarIdMap Name := {}
 
 abbrev ToMonoM := StateRefT ToMonoM.State CompilerM