Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs0251.cs

@@ -0,0 +1,12 @@
+// CS0251: Indexing an array with a negative index (array indices always start at zero)
+// Line: 10
+// Compiler options: -warn:2 -warnaserror
+
+class Main
+{
+    public int Method (int[] array)
+    {
+       const int index = 5;
+       return array [index - 10];
+    }
+}