// prior module, prefer that prior type by adding the offset
			// to this module's typemap.
			tm := make(map[typeOff]*_type, len(md.typelinks))
			pinnedTypemaps = append(pinnedTypemaps, tm)
			md.typemap = tm
			for _, tl := range md.typelinks {
				t := (*_type)(unsafe.Pointer(md.types + uintptr(tl)))
				for _, candidate := range typehash[t.Hash] {

// a package against any previously loaded version of the package.
// This is done in plugin.lastmoduleinit.
type modulehash struct {
	modulename   string
	linktimehash string
	runtimehash  *string
}

// pinnedTypemaps are the map[typeOff]*_type from the moduledata objects.
//
// These typemap objects are allocated at run time on the heap, but the
// only direct reference to them is in the moduledata, created by the