[svn r354] Fix the regressions between [346] and [353] by making constructors and destructors outside classes fatal errors. Fix tests makefile and add minimize to gc.d.

enum
{
    LLVMnone,
    LLVMintrinsic,
    LLVMva_arg,
    LLVMva_start,
    LLVMva_intrinsic,
    LLVMnotypeinfo,
    LLVMalloca
};