
Using LLVMContext to emit the error from `TargetRegistry::lookupTarget` that was silently ignored and not propagated. This allows user to better identify the kind of error occured. rdar://157542119
Using LLVMContext to emit the error from `TargetRegistry::lookupTarget` that was silently ignored and not propagated. This allows user to better identify the kind of error occured. rdar://157542119