Fix #75800

* mcs/expression.cs (Invocation.VerifyArgumentsCompat): Don't try
implicit conversions on 'out' and 'ref' arguments.
* gmcs/expression.cs: Likewise.
* errors/cs1502-7.cs: New test from #75800.

svn path=/trunk/mcs/; revision=59696

1 files changed, 28 insertions, 0 deletions

diff --git a/mcs/errors/cs1502-7.cs b/mcs/errors/cs1502-7.cs
new file mode 100644
index 00000000000..e25806807af
--- /dev/null
+++ b/mcs/errors/cs1502-7.cs
@@ -0,0 +1,28 @@
+// cs1502-7.cs: The best overloaded method match for `TestCase.TestS(ref object)' has some invalid arguments
+// Line: 21
+
+using System;
+
+public struct Struct {
+	public int x, y, z;
+}
+
+public class TestCase {
+	
+	public static void Main() {
+		
+		Struct s = new Struct();
+		
+		s.x = 1;
+		s.y = 2;
+		
+		System.Console.WriteLine("{0} {1} {2}", s.x, s.y, s.z);
+		
+		TestS(ref s);
+	}	
+	
+	public static void TestS(ref object ino) {
+		System.Console.WriteLine("{0}", ((Struct)(ino)).x);
+	}
+	
+}