const runtime.minSizeForMallocHeader

6 uses

	runtime (current package)
		malloc.go#L439: 		if minSizeForMallocHeader == uintptr(class_to_size[i]) {
		malloc.go#L452: 	if minSizeForMallocHeader/goarch.PtrSize > 8*goarch.PtrSize {
		mbitmap.go#L101: 	minSizeForMallocHeader = goarch.PtrSize * ptrBits
		mbitmap.go#L115: 	return userSize <= minSizeForMallocHeader
		mbitmap.go#L570: 		if span.elemsize > minSizeForMallocHeader {
		msize.go#L18: 		if !noscan && reqSize > minSizeForMallocHeader { // !noscan && !heapBitsInSpan(reqSize)