[svn r229] Updated the object.d implementation to the latest Tango. Fixed a bunch of the built-in typeinfos for arrays, they did not inherit TypeInfo_Array. Applied patch to tango/text/convert/Layout.d by fvbommel, closes #47 . Cleaned up some type code. Replaced uses of llvm::Type with LLType (a typedef), same for Value and Constant. Fixed a few cases where typeinfo for user structs could be emitted multiple times, seems to still be some cases of this :/

module interface3;

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

interface I
{
    void func();
}

class C : I
{
    int i = 42;
    override void func()
    {
        printf("hello %d\n", i);
        i++;
    }
}

void main()
{
    scope c = new C;
    {c.func();}
    {
        I i = c;
        {i.func();}
    }
    {printf("final %d\n", c.i);}
    {assert(c.i == 44);}
}