New tests.

svn path=/trunk/mcs/; revision=141970

2 files changed, 34 insertions, 0 deletions

diff --git a/mcs/errors/gcs0458-5.cs b/mcs/errors/gcs0458-5.cs
new file mode 100644
index 00000000000..9f2251d35f0
--- /dev/null
+++ b/mcs/errors/gcs0458-5.cs
@@ -0,0 +1,17 @@
+// CS0458: The result of the expression is always `null' of type `E?'
+// Line: 15
+// Compiler options: -warnaserror -warn:2
+
+enum E
+{
+	V
+}
+
+public class C
+{
+	public static void Main ()
+	{
+		E e = E.V;
+		object o = e + null;
+	}
+}
diff --git a/mcs/errors/gcs0458-6.cs b/mcs/errors/gcs0458-6.cs
new file mode 100644
index 00000000000..34556b5b9f9
--- /dev/null
+++ b/mcs/errors/gcs0458-6.cs
@@ -0,0 +1,17 @@
+// CS0458: The result of the expression is always `null' of type `int?'
+// Line: 15
+// Compiler options: -warnaserror -warn:2
+
+enum E
+{
+	V
+}
+
+public class C
+{
+	public static void Main ()
+	{
+		E e = E.V;
+		object o = null - e;
+	}
+}