[svn r261] Fixed debug info for integer and floating local variables, can now be inspected in GDB. Did a lot of smaller cleans up here and there. Replaced more llvm::Foo with LLFoo for common stuff. Split up tollvm.cpp.

module bug18;

struct S {
    int[9] i;
}

void main()
{
    int[9] i;
    auto s = S(i);
}