[svn r253] Removed -inlineasm option. inline asm is now enabled by default unless the new -noasm option is passed. Tried adding a stack trace print when compiler crashes, not sure it's working though. Changed data layouts to match that of llvm-gcc. Fixed casting function pointers. Added support checks in AsmStatement.

module bug6;
class wrong { }
void bark(ref wrong s) { s = new wrong; }
void foo(wrong tree) {
    auto old = tree;
    bark(tree);
    assert(old !is tree);
}
void main()
{
    auto w = new wrong;
    auto old = w;
    foo(w);
    assert(w is old);
}