Updated index out of range exception check to be a single comparison

Commit migrated from https://github.com/dotnet/coreclr/commit/3460d643fa62340b45b85ad0a57934c523ba5496

diff --git a/src/libraries/System.Private.CoreLib/src/System/Collections/ObjectModel/Collection.cs b/src/libraries/System.Private.CoreLib/src/System/Collections/ObjectModel/Collection.cs
index f0814e9..2fb6a2b 100644 (file)
--- a/src/libraries/System.Private.CoreLib/src/System/Collections/ObjectModel/Collection.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/Collections/ObjectModel/Collection.cs
@@ -186,7 +186,7 @@ namespace System.Collections.ObjectModel
                 ThrowHelper.ThrowNotSupportedException(ExceptionResource.NotSupported_ReadOnlyCollection);
             }
 
-            if (index < 0 || index > items.Count)
+            if ((uint)index > (uint)items.Count)
             {
                 ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.index, ExceptionResource.ArgumentOutOfRange_ListInsert);
             }
@@ -206,7 +206,7 @@ namespace System.Collections.ObjectModel
                 ThrowHelper.ThrowNotSupportedException(ExceptionResource.NotSupported_ReadOnlyCollection);
             }
 
-            if (index < 0 || index > items.Count)
+            if ((uint)index > (uint)items.Count)
             {
                 ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.index, ExceptionResource.ArgumentOutOfRange_ListInsert);
             }