https://issues.dlang.org/show_bug.cgi?id=9631 --- Comment #19 from Nick Treleaven <nick at geany.org> --- (In reply to Andrej Mitrovic from comment #5) > test.d(9): Error: function foo.test (S s) is not callable using argument > types (S) https://github.com/dlang/dmd/pull/7554 --