Matcher should always work with the whole expression, including Convert

Without this change, the following code doesn't work correctly,
because the passed in long is compared against int.

interface IFoo
{
    string M(long l);
}

var mock = new Mock<IFoo>(MockBehavior.Strict);
mock.Setup(x => x.M(int.Parse("2"))).Returns("OK");
var result = mock.Object.M(2L);

Source/MatcherFactory.cs

@@ -99,19 +99,19 @@ public static IMatcher CreateMatcher(Expression expression, bool isParams)
 				if (attr != null)
 				{
 					var matcher = attr.CreateMatcher();
-					matcher.Initialize(expression);
+					matcher.Initialize(originalExpression);
 					return matcher;
 				}
 				else if (staticMatcherMethodAttr != null)
 				{
 					var matcher = new MatcherAttributeMatcher();
-					matcher.Initialize(expression);
+					matcher.Initialize(originalExpression);
 					return matcher;
 				}
 				else
 				{
 					var matcher = new LazyEvalMatcher();
-					matcher.Initialize(expression);
+					matcher.Initialize(originalExpression);
 					return matcher;
 				}
 			}

UnitTests/Regressions/IssueReportsFixture.cs

@@ -1889,5 +1889,25 @@ public interface IServiceContract
 #endif
 
         #endregion
+
+        #region Matcher should work with Convert
+
+        public class MatcherConvertFixture
+        {
+            public interface IFoo
+            {
+                string M(long l);
+            }
+
+            [Fact]
+            public void MatcherDoesNotIgnoreConvert()
+            {
+                var mock = new Mock<IFoo>(MockBehavior.Strict);
+                mock.Setup(x => x.M(int.Parse("2"))).Returns("OK");
+                Assert.Equal("OK", mock.Object.M(2L));
+            }
+        }
+
+        #endregion
     }
 }