[svn r277] Fixed a nasty bug in delegate expressions. Context pointers to nested functions of the parent, from inside a nested function were invalid.

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