Added IrTypeFunction and IrTypeDelegate and eliminated IrDType. This means the Type::ir field can be removed. It's the final part needed for the move to a slightly more sane type system. Now the whole thing just needs to be cleaned up :P Added -v-cg switch, which right now just prints "codegen: module.name (module/name.d)" to stdout, this can really help figuring out where, in some complex build command, things go wrong.

// adapted from dstress.run.a.associative_array_19_<n> to catch regressions early

module mini.aa7;

extern (C) int printf(char*, ...);
extern (C) void gc_collect();


int main(){
    char*[char] aa;

    char key = 'a';
    aa[key] = &key;
    gc_collect();
    assert(aa[key] == &key);
    assert(key in aa);

    return 0;
}