This is a recent "fix": http://d.puremagic.com/issues/show_bug.cgi?id=7481
but I suggest to revert it, or improve it significantly, because I am seeing avalanches of error messages, that slow down my compilation-fix-run cycle and are useless to me and unreadable. A little example code: http://codepad.org/UvlfYO1t The bug is at line 46, the "in" before "T function": void report(T)(in T[] r, in T function(T) pure f, ... About half of the generated error messages, codepad shows only about the first 520 lines of errors, but it generates 1029 long lines of errors like this: http://codepad.org/ayEabGIH Bye, bearophile
