Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-optional-03-lib.cs

@@ -0,0 +1,49 @@
+// Compiler options: -t:library
+
+public struct S
+{
+}
+
+public enum E
+{
+	Value = 3
+}
+
+public class B
+{
+	public static string TestString (string s = "mono")
+	{
+		return s;
+	}
+
+	public static B TestB (B b = null)
+	{
+		return b;
+	}
+
+	public static T Test<T> (T t = default (T))
+	{
+		return t;
+	}
+
+	public static ulong TestNew (ulong s = new ulong ())
+	{
+		return s;
+	}
+
+	public static decimal TestDecimal (int i, decimal d = decimal.MinValue)
+	{
+		return d;
+	}
+	
+	public static E TestEnum (E e = E.Value)
+	{
+		return e;
+	}
+	
+	byte ch;
+	public byte this [int id, byte v = 1+5] {
+		get { return v; }
+		set { ch = value; } 
+	}
+}