Fix hardcoded Utilities.IsWindows property

This could probably use the new RuntimeInformation API in the future,
but since this would require touching project.json and bringing in a new
dependency I decided to go with the simple fix for now :)

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/src/Common/CoreCLRTestLibrary/Utilities.cs b/tests/src/Common/CoreCLRTestLibrary/Utilities.cs
index 0ab52c5406..b5fb796835 100644
--- a/tests/src/Common/CoreCLRTestLibrary/Utilities.cs
+++ b/tests/src/Common/CoreCLRTestLibrary/Utilities.cs
@@ -76,7 +76,7 @@ namespace TestLibrary
             [SecuritySafeCritical]
             get
             {
-                return true;
+                return Path.DirectorySeparatorChar == '\\';
             }
         }