From e9f8554f4d04ec95f509c01d45fa8a6a2625df2d Mon Sep 17 00:00:00 2001
From: Max Desiatov <m_desiatov@apple.com>
Date: Wed, 15 Mar 2023 22:29:30 +0000
Subject: [PATCH] PkgConfigTests: use `some FileSystem` instead of existentials

This is a small optimization that avoids the use of boxing for existentials.
---
 Tests/PackageLoadingTests/PkgConfigTests.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Tests/PackageLoadingTests/PkgConfigTests.swift b/Tests/PackageLoadingTests/PkgConfigTests.swift
index a3e369c1a9d..270702a81c8 100644
--- a/Tests/PackageLoadingTests/PkgConfigTests.swift
+++ b/Tests/PackageLoadingTests/PkgConfigTests.swift
@@ -30,7 +30,7 @@ extension SystemLibraryTarget {
 class PkgConfigTests: XCTestCase {
     let inputsDir = AbsolutePath(path: #file).parentDirectory.appending(components: "Inputs")
     let observability = ObservabilitySystem.makeForTesting()
-    let fs = localFileSystem
+    let fs: some FileSystem = localFileSystem
 
     func testBasics() throws {
         // No pkgConfig name.