[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 fail1;

void func()
{
    float* fp;
    float f = *fp;
}

void main()
{
    func();
}