Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-405.cs

@@ -0,0 +1,28 @@
+// Compiler options: -unsafe
+
+using System;
+
+namespace testapp{
+        public unsafe class LibTestAPI{
+
+                struct LibTestStruct{
+                        void* pData;
+                        void* pTest1;
+                }
+
+                LibTestStruct* the_struct;
+
+                public void Create(){
+                        IntPtr MyPtr = new IntPtr(0); // Usually created elsewhere
+                        the_struct = (LibTestStruct *) 0;  // error CS1002
+                }
+        }
+
+        class TestApp{
+                public static void Main(string[] args){
+                        LibTestAPI myapi = new LibTestAPI();
+                        myapi.Create();
+                }
+        }
+}
+