Adjust runtime for recent ABI change on x86-64, since member functions are no longer equivalent to regular functions with `this` as their first argument. (They weren't anyway, but it happened to work as long as there was no `sret` parameter)

#ifndef LDC_GEN_TOOBJ_H
#define LDC_GEN_TOOBJ_H

void writeModule(llvm::Module* m, std::string filename);

#endif