From 3ea031cf1cd8cbef03d02261bdc50e1b9a62276a Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wwigham@gmail.com>
Date: Mon, 28 Aug 2017 15:45:21 -0700
Subject: [PATCH] Fix RWC - use replayLog, not recordLog (#18095)

---
 src/harness/loggedIO.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/harness/loggedIO.ts b/src/harness/loggedIO.ts
index 42519c729e5..125283dcb22 100644
--- a/src/harness/loggedIO.ts
+++ b/src/harness/loggedIO.ts
@@ -251,7 +251,12 @@ namespace Playback {
             underlying.exit(exitCode);
         };
 
-        wrapper.useCaseSensitiveFileNames = () => !!recordLog.useCaseSensitiveFileNames;
+        wrapper.useCaseSensitiveFileNames = () => {
+            if (replayLog !== undefined) {
+                return !!replayLog.useCaseSensitiveFileNames;
+            }
+            return typeof underlying.useCaseSensitiveFileNames === "function" ? underlying.useCaseSensitiveFileNames() : underlying.useCaseSensitiveFileNames;
+        };
     }
 
     function recordReplay<T extends Function>(original: T, underlying: any) {