Now that templates instantiations are no longer emitted for all modules that even blink at them they seem to break due to being linkonce (if compiled with any optimization level > 0), so let's give them weak linkage instead. The difference is that unreferenced linkonce symbols can be deleted, while weak symbols need to be preserved.

#ifndef LDC_GEN_TYPEINF_H
#define LDC_GEN_TYPEINF_H

void DtoResolveTypeInfo(TypeInfoDeclaration* tid);
void DtoDeclareTypeInfo(TypeInfoDeclaration* tid);
void DtoConstInitTypeInfo(TypeInfoDeclaration* tid);

#endif