Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs0173.cs

@@ -0,0 +1,13 @@
+// CS0173: Type of conditional expression cannot be determined because there is no implicit conversion between `null' and `null'
+// Line: 10
+
+using System;
+
+class X
+{
+	static int Main (string[] args)
+	{
+		int[] t = args.Length > 0 ? null : null;
+		return t == null ? 0 : 1;
+	}
+}