When looking for base implementation of generic MVAR methods use non-inflated parameter types. Fixes #15523

1 files changed, 32 insertions, 0 deletions

diff --git a/mcs/tests/gtest-599.cs b/mcs/tests/gtest-599.cs
new file mode 100644
index 00000000000..a25e7b6e669
--- /dev/null
+++ b/mcs/tests/gtest-599.cs
@@ -0,0 +1,32 @@
+using System;
+
+public abstract class A<X>
+{
+	public abstract T Test<T> (T t, X x);
+}
+
+public class B : A<char>
+{
+	public override T Test<T> (T t, char x)
+	{
+		Console.WriteLine ("B");
+		return default (T);
+	}
+}
+
+public class C : B
+{
+	public override T Test<T> (T t, char c)
+	{
+		base.Test ("a", 'a');
+		return default (T);
+	}
+}
+
+class X
+{
+	public static void Main ()
+	{
+		new C ().Test<int> (1, '1');
+	}
+}
\ No newline at end of file