Destroy. https://github.com/dlang/DIPs/pull/51/filesAndrei
How about:
bool equal(R1, R2) : std.range
if (isInputRange!R1 && isInputRange!R2)
{ ... }
It's nice and concise, and you could in theory also allow
multiple imports with a comma
bool equal(R1, R2) : std.range, std.traits
if (isInputRange!R1 && isInputRange!R2 && isArray!R2)
{ ... }
