Fix #77954.

* expression.cs (Invocation.IsApplicable): Ensure a generic method
definition doesn't take part in overload resolution.
(Invocation.IsParamsMethodApplicable): Likewise.
(Invocation.OverloadResolve): When replacing a reflected override
method with its base definition, ensure that type arguments are applied.

svn path=/trunk/mcs/; revision=58887

1 files changed, 14 insertions, 0 deletions

diff --git a/mcs/tests/gtest-265-lib.cs b/mcs/tests/gtest-265-lib.cs
new file mode 100644
index 00000000000..43abd5e7dea
--- /dev/null
+++ b/mcs/tests/gtest-265-lib.cs
@@ -0,0 +1,14 @@
+// Compiler options: -t:library
+
+public class A : X
+{
+        public override void Whoa<T> (object arg)
+        {
+        }
+}
+
+public abstract class X
+{
+        // virtual is also buggy
+        public abstract void Whoa<T> (object arg);
+}