Disabled parameter reversing by default, it broke mini/typeinfo10.d Fixed 'inreg' property placement for functions with reversed parameters. Made parameter reversal and inreg passing of first arg configurable in premake.lua

module bug1;
struct Foo { Foo opSub(ref Foo b) { return Foo(); } }
struct Bar { Foo whee; }
void test(ref Bar moo) { Foo nngh; auto plonk = nngh - moo.whee; }
void main() { Bar bar; test(bar); }