Add failing test for Checked/initializer interaction

ICSharpCode.Decompiler/Tests/CheckedUnchecked.cs

@@ -16,6 +16,8 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
+using System;
+
 public class CheckedUnchecked
 {
 	public int Operators(int a, int b)
@@ -63,4 +65,48 @@ public class CheckedUnchecked
 			}
 		}
 	}
+    public void ObjectCreationInitializerChecked() 
+    {
+        this.TestHelp(new
+        {
+            x = 0,
+            l = 0
+        }, n => checked(new
+        {
+            x = n.x + 1, 
+            l = n.l + 1
+        }));
+    }
+
+    public void ObjectCreationWithOneFieldChecked() 
+    {
+        this.TestHelp(new 
+        {
+            x = 0,
+            l = 0
+        }, n => new 
+        {
+            x = checked(n.x + 1), 
+            l = n.l + 1 
+        });
+    }
+
+    
+    public void ArrayInitializerChecked() 
+    {
+        this.TestHelp<int[]>(new int[]
+        {
+            1,
+            2
+        }, (int[] n) => checked(new int[]
+        {
+            n[0] + 1,
+            n[1] + 1
+        }));
+    }
+
+    public T TestHelp<T>(T t, Func<T, T> f)
+    {
+        return f(t);
+    }
 }