Fix warnings as errors

Signed-off-by: dotnet-bot <dotnet-bot@microsoft.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/9084476de3173deaf3c2c39549411fa55f500f72

diff --git a/src/libraries/System.Private.CoreLib/src/System/DateTime.cs b/src/libraries/System.Private.CoreLib/src/System/DateTime.cs
index 1a33479..c0210b0 100644 (file)
--- a/src/libraries/System.Private.CoreLib/src/System/DateTime.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/DateTime.cs
@@ -809,10 +809,12 @@ namespace System
                 throw new ArgumentOutOfRangeException(nameof(fileTime), SR.ArgumentOutOfRange_FileTimeInvalid);
             }
 
+#pragma warning disable 162 // Unrechable code on Unix
             if (s_systemSupportsLeapSeconds)
             {
                 return FromFileTimeLeapSecondsAware(fileTime);
             }
+#pragma warning restore 162
 
             // This is the ticks in Universal time for this fileTime.
             long universalTicks = fileTime + FileTimeOffset;
@@ -1316,10 +1318,12 @@ namespace System
             // Treats the input as universal if it is not specified
             long ticks = ((InternalKind & LocalMask) != 0) ? ToUniversalTime().InternalTicks : this.InternalTicks;
 
+#pragma warning disable 162 // Unrechable code on Unix
             if (s_systemSupportsLeapSeconds)
             {
                 return ToFileTimeLeapSecondsAware(ticks);
             }
+#pragma warning restore 162
 
             ticks -= FileTimeOffset;
             if (ticks < 0)