Fixed formatting unit tests.

ICSharpCode.NRefactory.CSharp/Formatter/AstFormattingVisitor.cs

@@ -865,6 +865,8 @@ namespace ICSharpCode.NRefactory.CSharp
 				foreach (var arg in parameters) {
 					if (methodCallArgumentWrapping == Wrapping.DoNotWrap) {
 						ForceSpacesBeforeRemoveNewLines(arg, spaceAfterMethodCallParameterComma && arg.PrevSibling.Role == Roles.Comma);
+					} else {
+						ForceSpacesBefore(arg, spaceAfterMethodCallParameterComma && arg.PrevSibling.Role == Roles.Comma);
 					}
 					arg.AcceptVisitor(this);
 				}
@@ -1764,6 +1766,8 @@ namespace ICSharpCode.NRefactory.CSharp
 				foreach (var arg in arguments) {
 					if (methodCallArgumentWrapping == Wrapping.DoNotWrap) {
 						ForceSpacesBeforeRemoveNewLines(arg, spaceAfterMethodCallParameterComma && arg.PrevSibling.Role == Roles.Comma);
+					} else {
+						ForceSpacesBefore(arg, spaceAfterMethodCallParameterComma && arg.PrevSibling.Role == Roles.Comma);
 					}
 					arg.AcceptVisitor(this);
 				}